So they have Bonnie pick Enzo, just for Enzo to treat her badly
during his no humanity and she's going to take his verbal abuse as she tries to get him to turn back on his switch? I never excused anything that the vampires did without their humanity switch on. But to have Bonnie pick Enzo, just for her to struggle through getting him to turn back on his switch.
Saying that she choose her happiness and yet making her suffer through something yet again, where she has to go through some kind of pain and emotional turmoil yet again for the sake of trying to save and help someone else, rinse, wash, repeat of how she was willing to put her physical or emotional well being to the side before in the name of saving one of her friends/boyfriends.