I have a problem behavior that I cant seem to find a solution to. Currently I have two rabbits, the older one Juniper, is more or less a model rabbit. But the rabbit bonded to him died.  Due to covid, I had difficultly finding an older unbonded spayed rabbit to bond with him, so I got a young unspayed one.  they have their own room, and have been kept seperate until she can get spayed, which is not for another few weeks.  Their enclosures are next to each other with a few inches distance so they cant touch. It has been this way for months. Juniper is quite relaxed and lounges often on the side of the cage closest to the other rabbit, and seems comforted by her presence even though they are not together.

The young one has developed a habit of launching herself from a sitting position to the top of the cage and hanging there like a spider monkey, before letting go and dropping. It’s quite loud, and happens every night. I have tried covering the cage, did not work. I have experimented with the time she is out in house for exercise to see if this alters her behavior, and it has not.  I can leave her out for 9 hours or 1, and she still continues this behavior every night. I have tried different toys in her cage at night, and she still continues.  I have tried a calming pet diffuser for rabbits, nothing.  I am hoping its largely due to hormones developing, and she will calm down once shes able to be bonded with the other rabbit, but I need a fix until then.  I feel like its attention seeking behavior, as she is quite demanding out of her cage. she wants to be held and petted, and will follow me around constantly.