Hi Chris! I know exactly how you feel. I lived in NYC with my very aggressive, bite-y bunny. It was even worse then what you’re talking about. My room was more like 80 square feet. George’s cage was 2′ 4′. He was only allowed out from 10 when I got home until midnight/1am when I went to sleep. He chewed everything. It’s a miracle he didn’t get electrocuted. He chewed so many wires.
These are the ideas I’ve got, hopefully there were more people who have had to deal with this as well,
-I don’t know what you have in his cage, but toys that will help with his frustration like paper to shred, cardboard to chew and anything he can throw are cheap and will make him feel like he has control over the situation.
-Try not to clean his cage unless you have to. The litterbox has to be cleaned, but try to leave all his stuff alone as much as possible.
-You can look into vertical expansion if you don’t have the option of horizontal space. Bunny condos are relatively easy to build and cheap. This will also give your little guy an outlet for excess energy.
-Leave the radio on for him at a low volume. I always did NPR because there are always people having conversations and it’s super mellow.
-Try not to feel guilty. It’s easy to feel like you’re not giving your rabbit the best life they could possibly have (I think we all feel that way sometimes). If you like having him around and you feed him/trim his nails/take him to the vet then you two are a good match. Find an in cage/out of cage schedule you can stick to and maintain your sanity. The HRN recommended minimum is 3hrs. Whatever works for you do it and give him time to adjust. I guarantee you’re providing a happy life for him. It’s really impressive that you kept him after breaking up with your girlfriend. Rabbits think of their people as part of their burrow. Even if he’s grumpy about the move the stability of being with you is reassuring.