rabbit not happy

Hi everyone! So I haven’t had my bunny for too long, about three weeks. The first few days I had him home, I had him in his cage, just so he could get used to it and know that it’s the place where he’s fed. “Home-base”, if you will. After that, I let him out and he’s been free roaming in my room...

My Bummy recently fell from her cage which was like 5 feet tall, she jumped out actually, then i noticed that she's been limping and not very social ever since, then her partner Bugs has been so lonely and quiet too since that happened. They don't each much anymore too! I don't know what...