Interesting Line from "Sleepwalk With Me"

The movie was slow but the big take away from the film, are the following lines


Matt: "Why did you stay with me all those years when you knew that we're doomed?"

Abby: "I didn't wanna hurt you"

Matt then commented on his relationship: We almost spent entire, the rest of our lives together, because we didn't wanna make the other person mad.