So, I was in a 5 year long relationship with my ex. We were in college together and then we got jobs in different places. We decided we could meet once every 2-3 months and be in a long distance and after one year would try to get jobs in a common city. Everything was going well for the first 3-4 months. We met whenever we can. Then she tells me that she wants a break so she could focus on her job. Out of nowhere, this came. She told me that it'd take just a few weeks because she was working on something important. She told me the details, so I was convinced and decided to give her some space. After that, i went to meet her, we had a happy time and I thought everything would be good again, but when i reached back she told me that she kissed some colleague of hers who is like 9-10 years older than her and she was guilty, so she didn't tell me. I had a hard time digesting it and I broke up with her. There were many other factors as when she was at home after work she wanted full attention from me but when she went out with her friends for days, she didn't even call me once. I felt it was a shitty relationship. I told her that I don't want this relationship, and she told me can we be friends atleast and I said no to that too. I have decided to cut off all ties with her but a part of me wants to go back to her. Help me out guys!

So, AITA for breaking up with her.