Welcome!
Sounds like he’s well on the way to training you to be his life long slave. Don’t worry, it happens to all of us.

I guess it’s the teenage hormones that’s kicking in?

100% ! 

Since you plan to have him neutered, it’s just a matter of living through this phase as best you can. You’re on the right track in thinking to block him off areas where he is marking a lot, until this phase passes. Or, if you’re not keen limit him, use a waterproof covering up on the couch and other places so the clean up is easier. You could even pop a litterbox up there too, when he is out.

It’s not unusual for rabbits to get even worse in the week or two after desexing. But once the hormones level out to a new low, things should improve. 

This site’s diet recommendations are based on what the House Rabbit Society recommends. 

At 4 months, they say to give unlimited pellets – so giving more then a tablespoon would not hurt. Just clarify with your vet if they meant a tablespoon a day for an adult rabbit or not. If increased pellets causes some mucky poop, then reduce them back again. 

 I don’t think I gave my rabbits unlimited pellets when young (it’s been a while) but it was probably something like half a cup. I got to know how much they would eat. 

To encourage him to eat more hay, and timothy, maybe try stuffing it in a toy or cardboard tube? 

You might like to try orchard or oat hay too. 

Below is a post by Bam that I copy/pasted this from another recent thread. 

This is what BB just recently found out from the HRS regarding pellets and alfalfa hay:

The HRS guidelines say.
7 weeks to 7 months–unlimited pellets, unlimited hay (plus see 12 weeks below)
12 weeks–introduce vegetables (one at a time, quantities under 1/2 oz.)
But the question is should the hay and pellets both be alfalfa at this age.

BB asked this question to the HRS Headquarters Executive Director. This is their reply:
—————-
Hi
Yes, for 7 weeks to 7 months, the hay & pellets should both be alfalfa.
In practice at HRS headquarters, if the babies are looking full grown & chubby at 5-7 months, we’ll switch them from alfalfa hay to orchard/timothy early. We do alfalfa pellets until at least 1 year. At that point, we switch to an adult formulated pellet, whether alfalfa or timothy-based, and feed 1/8c 2xday or 1/4c 1xday.
I hope that helps!

Hey! Just wanted to say that reading your post really helped me this evening! I’m a first time bun owner (I’ve had him about nine months now) and my little man got neutured two weeks ago finally. I love him so much but his litter habits have been a bit of a nightmare to deal with. Ever since he hit the six month mark he took the poop and peeing fest to my bed (luckily he is yet to decide that the sofa is worthy of his scent). I know that I am way too soft on him and let him get away with things I shouldn’t eg. just clearing up after him when I’m tired and deciding to live with a litter box on my bed at night rather than putting him in his puppy pen. I’ve been a lot more strict on him since the neuter and he is definitely fighting back hard against any lack of slave duties but i know it’s worth it in the long run.

Anyway! Reading this really helped as sometimes I think I’m doing everything wrong but in a way it’s nice to know that other bun slaves are struggling with the same problems. The only advice I have is that when I cut down his alfalfa hay bit by bit (he’s approximately a year old now) I mixed the timothy hay in with Oxbow Botanical hay (it’s expensive but I found it worth it) and he loved it. Now I’ve got him on Timothy hay full time without the botanical hay and although he can be fussy about brand he doesn’t have a tantrum about it. Definitely second the cardboard roll tip too! I hide a pellet in the centre and then he eats all the hay once he’s found it. Has the added bonus of keeping them busy for a while, you know, in case you might have anything else to do than entertain bun full time