Inconstant things.

I've been dreaming more because I have to take Tylenol PM to fall asleep. Last night I had a dream about an old friend. She moved back to town and told me she was really upset that I wasn't her friend anymore after she moved, and I felt really bad because I didn't realize that it would mean anything to her. I still feel that she wants nothing to do with me. But in the dream she said it really bothered her that I wasn't there for her.
What does it matter? It's only a dream.