Our pet bunny (dwarf rabbit) has BPD. I'm kidding of course, but here's the story.
Older female bunny picks on male bunny #1 that has been with her her entire life. He sits and takes it. Male bunny #1 gets sick and dies. Female bunny comforts him during his last days and seems to miss him.
After a while, we take female bunny to meet a new cage mate. During the introduction, she is as sweet as can be. We bring the new bunny home thinking we are helping.
Female bunny is initially nice but soon she attacks. Male bunny #2 has no clue what's going on. We remove male bunny #2 and every time we try to reintroduce him, she eventually attacks.
I've started talking to male bunny #2 about boundaries.
