Your bunny is exhibiting classic signs for being sexually mature and neutering would stop a lot of this behavior. There are additional benefits to neutering besides calming him down. Buns are prone to reproductive cancers and it will also make his urine less odorous. Males also spray and leave poops to mark their territory (especially by doorways) so you want to stop this potential behavior before he starts it. However be advised you need a rabbit specialist vet to do the neutering. Buns are fragile when it comes to anesthetic and many vets do not go on to take the advanced training that exotic animals require (Yes, a rabbit is considered to be an exotic animal). www.rabbit.org has wonderful information about all kinds of bunny matters, everything from health to nutrition, toys, bonding, litter training, etc.

By neutering him he will calm down and will be much more pleasant to live with. THe other thing I might add is that baby bunnies are full of energy and curiousity and, to my mind, hyper. With age they calm down some, but not as much as if the are neutered. So I'm guessing you've got 2 things going on w/him...his age and his hormones.

Chewing......bunnies teeth grow constantly, never stopping. They chew to keep their teeth trimmed. You might give him an unpainted, untreated piece of pine wood...better yet branches from ORGANIC apple trees, which are sold my many pet product companies online (bunnyluv, bunnybytes...go to Links in www.rabbit.org). Bunnies usually like toys but they get bored very easily and you need to rotate his toys frequently. An empty roll of toilet paper is fun...you can stuff some timmy hay in it too, a small plastic margarine tub or lid can be a blast as bunnies LOVE a good size empty cardboard box turned upside down so it turns into a cave....be sure to put in two exits in case the box gets pushed against the wall and one exit becomes sealed off.

If he's really bad about the chewing you might consider buying a puppy pen sold in most pet stores. They are 8 sides stand alone fencing which give the bunny about 5-6 sq ft of room and are usually less expensive than cages sold in pet stores. In fact the House Rabbit Society now recommends these for housing instead of a cage.

Good luck with your bunny. It sounds like he has a wonderful home. I think you just need to make a few adjustments to keep both of you happy and on speaking terms.