ex-girlfriend Kayti Edwards has opened up about leaving the actor because she as she shares the she would often send him. Now that in connection with his death, his ex-girlfriend and former assistant Kayti, 47, has come forward and shared her heartbreaking end with the star. In an exclusive interview with , Kayti explained that she witnessed first-hand Matthew's everyday struggle with addiction as she watched it spiral out of control.

And while she had built a strong bond with Matthew, she admitted that it came to a point where she couldn't stand to work or be romantically involved with him anymore. She explained: "Matthew paid me very well as his assistant but there came a point for me that he got so bad that I had no choice but to walk away from that salary. But I knew that I could not watch him die.

I would never, ever be able to live with myself.” Kayti went on to add: "There were so many sleepless nights that I would go home and I would wake up at four in the morning texting him, 'Are you alive? Are you alive? Just answer. Send me an emoji.

Send me something that you are there.' I couldn't sleep at night knowing what he was doing. And I think part of me stayed as long as I did, because if I didn't stay, he would have been alone, and he would have just kept going.

" Eventually, she managed to persuade him to go to rehab in January 2011. She explained: "I said, 'I'm not doing this anymore, Matthew, I am sorry you were going to hate me, but we are getting you in a rehab.'".