Bear
I feel like Bear represents a lot of abusive relationships. The concept of sucking someone in through manipulation and/or control and bearing (pun intended) their partner’s “erratic” behavior to convince themselves that they’re the victim and they’re just trying to help their partner when in reality they’re the reason their partner is in an uncontrollable state of mind. Then when the going gets tough and Bear realized he bit off more than he can chew, he leaves her after she’s done irreparable damage and has to live with herself.
Bear can’t say he loved her because no one would do that to someone he loved. He was just a selfish, controlling wuss.