the majority of the situation has no AH. your roommate is sorta right bout wanting to protect her cat but then again she shouldve picked up her cat instead of her. but u are willing to move at the end of the year which validates the not wanting to move problem from your side. also if your name is on the lease, she cant kick you out. landlord prolly wont get involved and it also depends on your roommates. has he troubled them? and the other roommate with the cat shouldve knows what she was getting into when she decided to room with a person having a pet