Back in Mexico City, Kahlo and Rivera moved into a new house in the wealthy neighborhood of San Ángel.
Commissioned from Le Corbusier's student Juan O'Gorman, it consisted of two sections joined together by a bridge; Kahlo's was painted blue and Rivera's pink and white.
The bohemian residence became an important meeting place for artists and political activists from Mexico and abroad.

She was again experiencing health problems – undergoing an appendectomy, two abortions, and the amputation of gangrenous toes – and her marriage to Rivera had become strained.
He was not happy to be back in Mexico and blamed Kahlo for their return.
While he had been unfaithful to her before, he now embarked on an affair with her younger sister Cristina, which deeply hurt Kahlo's feelings.
After discovering it in early 1935, she moved to an apartment in central Mexico City and considered divorcing him.
She also had an affair of her own with American artist Isamu Noguchi.

Kahlo reconciled with Rivera and Cristina later in 1935 and moved back to San Ángel.
She became a loving aunt to Cristina's children, Isolda and Antonio.
Despite the reconciliation, both Rivera and Kahlo continued their infidelities.
She also resumed her political activities in 1936, joining the Fourth International and becoming a founding member of a solidarity committee to provide aid to the Republicans in the Spanish Civil War.
She and Rivera successfully petitioned the Mexican government to grant asylum to former Soviet leader Leon Trotsky and offered La Casa Azul for him and his wife Natalia Sedova as a residence.
The couple lived there from January 1937 until April 1939, with Kahlo and Trotsky not only becoming good friends but also having a brief affair.

After opening an exhibition in Paris, Kahlo sailed back to New York.
She was eager to be reunited with Muray, but he decided to end their affair, as he had met another woman whom he was planning to marry.
Kahlo traveled back to Mexico City, where Rivera requested a divorce from her.
The exact reasons for his decision are unknown, but he stated publicly that it was merely a "matter of legal convenience in the style of modern times ... there are no sentimental, artistic, or economic reasons."
According to their friends, the divorce was mainly caused by their mutual infidelities.
He and Kahlo were granted a divorce in November 1939, but remained friendly; she continued to manage his finances and correspondence.

Following her separation from Rivera, Kahlo moved back to La Casa Azul and, determined to earn her own living, began another productive period as an artist, inspired by her experiences abroad.
Encouraged by the recognition she was gaining, she moved from using the small and more intimate tin sheets she had used since 1932 to large canvases, as they were easier to exhibit.
She also adopted a more sophisticated technique, limited the graphic details, and began to produce more quarter-length portraits, which were easier to sell.
She painted several of her most famous pieces during this period, such as The Two Fridas (1939), Self-portrait with Cropped Hair (1940), The Wounded Table (1940), and Self-Portrait with Thorn Necklace and Hummingbird (1940).
Three exhibitions featured her works in 1940: the fourth International Surrealist Exhibition in Mexico City, the Golden Gate International Exposition in San Francisco, and Twenty Centuries of Mexican Art in MoMA in New York.

On 21 August 1940, Trotsky was assassinated in Coyoacán, where he had continued to live after leaving La Casa Azul.
Kahlo was briefly suspected of being involved, as she knew the murderer, and was arrested and held for two days with her sister Cristina.
The following month, Kahlo traveled to San Francisco for medical treatment for back pain and a fungal infection on her hand.
Her continuously fragile health had increasingly declined since her divorce and was exacerbated by her heavy consumption of alcohol.

Rivera was also in San Francisco after he fled Mexico City following Trotsky's murder and accepted a commission.
Although Kahlo had a relationship
Back in Mexico City, Kahlo and Rivera moved into a new house in the wealthy neighborhood of San Ángel. Commissioned from Le Corbusier's student Juan O'Gorman, it consisted of two sections joined together by a bridge; Kahlo's was painted blue and Rivera's pink and white. The bohemian residence became an important meeting place for artists and political activists from Mexico and abroad.
She was again experiencing health problems – undergoing an appendectomy, two abortions, and the amputation of gangrenous toes – and her marriage to Rivera had become strained. He was not happy to be back in Mexico and blamed Kahlo for their return. While he had been unfaithful to her before, he now embarked on an affair with her younger sister Cristina, which deeply hurt Kahlo's feelings. After discovering it in early 1935, she moved to an apartment in central Mexico City and considered divorcing him. She also had an affair of her own with American artist Isamu Noguchi.
Kahlo reconciled with Rivera and Cristina later in 1935 and moved back to San Ángel. She became a loving aunt to Cristina's children, Isolda and Antonio. Despite the reconciliation, both Rivera and Kahlo continued their infidelities. She also resumed her political activities in 1936, joining the Fourth International and becoming a founding member of a solidarity committee to provide aid to the Republicans in the Spanish Civil War. She and Rivera successfully petitioned the Mexican government to grant asylum to former Soviet leader Leon Trotsky and offered La Casa Azul for him and his wife Natalia Sedova as a residence. The couple lived there from January 1937 until April 1939, with Kahlo and Trotsky not only becoming good friends but also having a brief affair.
After opening an exhibition in Paris, Kahlo sailed back to New York. She was eager to be reunited with Muray, but he decided to end their affair, as he had met another woman whom he was planning to marry. Kahlo traveled back to Mexico City, where Rivera requested a divorce from her. The exact reasons for his decision are unknown, but he stated publicly that it was merely a "matter of legal convenience in the style of modern times ... there are no sentimental, artistic, or economic reasons." According to their friends, the divorce was mainly caused by their mutual infidelities. He and Kahlo were granted a divorce in November 1939, but remained friendly; she continued to manage his finances and correspondence.
Following her separation from Rivera, Kahlo moved back to La Casa Azul and, determined to earn her own living, began another productive period as an artist, inspired by her experiences abroad. Encouraged by the recognition she was gaining, she moved from using the small and more intimate tin sheets she had used since 1932 to large canvases, as they were easier to exhibit. She also adopted a more sophisticated technique, limited the graphic details, and began to produce more quarter-length portraits, which were easier to sell. She painted several of her most famous pieces during this period, such as The Two Fridas (1939), Self-portrait with Cropped Hair (1940), The Wounded Table (1940), and Self-Portrait with Thorn Necklace and Hummingbird (1940). Three exhibitions featured her works in 1940: the fourth International Surrealist Exhibition in Mexico City, the Golden Gate International Exposition in San Francisco, and Twenty Centuries of Mexican Art in MoMA in New York.
On 21 August 1940, Trotsky was assassinated in Coyoacán, where he had continued to live after leaving La Casa Azul. Kahlo was briefly suspected of being involved, as she knew the murderer, and was arrested and held for two days with her sister Cristina. The following month, Kahlo traveled to San Francisco for medical treatment for back pain and a fungal infection on her hand. Her continuously fragile health had increasingly declined since her divorce and was exacerbated by her heavy consumption of alcohol.
Rivera was also in San Francisco after he fled Mexico City following Trotsky's murder and accepted a commission. Although Kahlo had a relationship 
Frida Kahlo