Ok, at this point your bunny needs you. And I mean it. Show your rabbit how much you care about it, give it love and affection, you may have to set up a cozy area with pillows and healthy rabbit treats. Just show your rabbit you love it and you won’t regret it one bit!
Spend extra time bonding with your rabbit.
You can pet your rabbit, play with your rabbit, and even eat lunch near your rabbit! The best way to cure rabbit depression is to do as much as possible with it until it is happy again.
Hope that helped.
Another solution would be to ask a veterinarian or animal doctor who specializes in rabbit care.
Hope that helps because giving up a rabbit is a sad solution, especially since most end up in shelters anyway. You could also look online using a google search to see if anybody else knows what to do.
I’m not sure but he could be developing an urge to mate if you haven’t neutered your rabbit.
Either that or he’s going through the normal temporary phase of maturity.