When you say your mom almost made her leave the house what do you mean? I hope she wasn’t meaning just to be put out as a stray. Or do you mean she meant for her to live in an outside hutch or ????.
Part of having animals is dealing with some of the challenges they create. All animals have something to work through, cats, dogs, birds… and rabbits are no exception. Many times people think rabbits are “easy”, when actually they can be one of the most challenging pets to have – Especially young rabbits. But there are ways to get through many of these things, so obviously our mission here is to make it so your bunny will not be at risk of “leaving” the house.
You’ve done the right thing to come here and find solutions. Shows you care very much about your bunny.
So, it sounds like she is becoming territorial over the chair. When you say your bunny would freak out, does she lunge, bite or?? If so, this is her hormones telling her to fight for the best future “nesting” spot. She is trying to claim the chair.
You have to claim that chair. As soon as she gets on, get her off, either pick her up and put her on the floor, or grab a squirt water bottle and give her a little squirt. Does anyone usually sit in that chair or is it one of the chairs that’s not used.
You also should provide her with something that she will find just as comfy to claim. I suggest getting some cheap soft blankets, make a soft cushy place for her in a corner somewhere – or put them in a cardboard box. She may dig and chew those instead. It’s okay for her to chew them up as long as she is not eating the the blanket, just make sure she is leaving all the little chewed up pieces behind.
And it’s time to look for a rabbit savvy vet as she will soon be ready to be spayed and these territorial behaviors will lesson.
But you will always have to provide activities and chew toys. Check out the toytest section of this site under bunny info. Provides home-made toy ideas to keep your bunny busy.
Also, be sure to bunny proof your home, because I doubt this will be the last time your bunny will get into trouble. Be sure that either all cords are out of the way or covered. See the bunny proofing section under bunny info.