I have had one spayed female rabbit for almost 2 years now (Cookiedoe). I thought that she was lonely so I adopted another female rabbit (Nala) 2 weeks ago. I had them both living in pens next to each other for 4 days. I had to then move them into Cookiedoes cage. Cookie’s cage is a 5 foot by 3 foot with two levels. One rabbit is on top while the other one is on the bottom. Every night after a bonding session I switch them, so that the rabbit that was on the bottom goes on top and the rabbit that was on the top goes onto the bottom. I started out with doing a stress bonding in the carer and then put them into a bath tub for 10 min. It went very well with only one nip. I started to add a minute on everyday. After a week I did a 30 min. bonding session and a 3 hour bonding session. I have had the bonding session’s in different area’s of the house (and outside), different pen size, different flooring, and bonding time. I fell like every bonding session is getting worse and worse. My new rabbit Nala is so posed to have been spayed, but I’m not so sure anymore. They will eat, flop, and groom themselves in the pen, but after 5-10 min or so Nala will lounge at Cookie. Nala will not nip, chase, or hump Cookiedoe, instead she full on attacks her. Cookiedoe has humped nala in the carrier once, but no where else. I get the felling that Nala is trying to seriously hurt or kill Cookie. Everything that I have read online says that they should be chasing, nipping, and humping each other, but all they are doing is fighting. I did a lot of research before I got Nala and now it’s relay stressing me out because nothing that i read is working. I don’t know what to do from here, please help me.