You and Evan were in a relationship. You loved him so much, literally did everything to be with him, but Evan had other feelings for you. When you first met, he had a lot of problems, a lot. Lasting problems from movie roles he’d taken in the past, and you helped him cope with this condition, and started dating.

But after a while, his interest in you literally cooled down. For the first few days after the break up you just couldn't recover, a fierce derealization began, you just didn't believe in it, didn't believe that you were no longer together. You went to drugs to find some comfort, and it became at least a little easier to bear the pain. Thus, addiction began to appear, so let's say, it was like replacing Evan.