so I've had a bunny(m,neutered) for a bit over a year now and about a month ago I got another one(f) as a surprise birthday present. at first she was very curious and outgoing and he didn't seem to have any problems with her, quite the opposite actually. I was thinking of getting another bunny before being surprised with her anyways becouse my male seemed lonely and I don't have quite enough time to spend hours with him every day. so as i said, everything seemed to be going alright but after a few days he started to be aggressive towards her- not trying to kill her or anything, but he wouldn't let her get too close to him becouse he would hiss and run after her. he is a free roam and although I do have a large metal fence-thingy I never keep him closed in it becouse he just chewed and tried to bite through it. then I tried to keep her in that "cage" but she kept trying to bite through it as well so I just gave up and since they were getting along relatively well, I just tried to keep them both free roamed- which I know was obviously a mistake. i did a few stress bonding and normal bonding sessions with them but they didn't seem to make any difference. i was advised to keep them separated and not try bonding them until I get her neutered (which I should be doing soon) but I just don't know how since she's now used to free roaming and keeping her caged just seemed cruel. I probably forgot to mention she usually spends time under my bed and is very cautious of me as well, probably becouse we don't really have a chance to bond with the male around (he is pretty protective of me). anyone got any advice?