Cory Monteith death: Lea Michele breaks silence after overdose of her boyfriend and Glee co-star The actress posted a picture of the pair together, tweeting: "Thank you all for helping me through this time with your enormous love & support. Cory will forever be in my heart. Michele, 26, had previously only spoken about her grief through a representative, who urged the public to respect Michele's privacy, and gave details about how the actress was supporting Monteith's family. Monteith and Michele, who were a couple on-screen as well as off, had been dating for over a year. Monteith, 31, was found dead in his hotel room in Vancouver on Saturday 13 July. An autopsy revealed he died of a heroin and alcohol overdose. Michele was publicly supportive of the actor's decision to enter a rehabilitation clinic in March for substance addiction. The actress also helped to arrange a memorial service for the cast and crew of Glee last week, which was held in a private location in Los Angeles. Glee creator Ryan Murphy said plans were underway to film a memorial Glee episode in tribute of the late actor. For further reading: Cory Monteith Obituary Glee creator Ryan Murphy plans episode in tribute to Cory Monteith Glee cast and crew hold private memorial for Cory Monteith