'Glee' star Lea Michele breaks silence after Cory Monteith's death

Actors Lea Michele, left, and Cory Monteith arrive at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Jordan Strauss / Invision)

LOS ANGELES — Lea Michele is breaking her silence online after her "Glee" co-star and real-life boyfriend Cory Monteith died of an overdose earlier this month.

The actress posted a photo of her and Monteith on Twitter Monday, along with a message thanking her followers for "helping me through this time with your enormous love & support."

"Cory will forever be in my heart," Michele wrote.

Monteith was found dead July 13 in Vancouver, British Columbia. An autopsy revealed the 31-year-old actor died of an overdose of heroin and alcohol.

He and Michele played an on-again, off-again couple in the popular Fox series and were an off-screen couple for about a year.