Oh wow, you’ve had her a while! There are some bunnies that do seem to be somewhat antisocial. But there are also some that just take a really long time to come out of their shell. Forum leader Bam’s bunny Bam decided after about a year that he liked her and suddenly liked exploring.
Other tips for bonding include doing lots of hand-feeding. You can even feed all of her salad and pellets by hand. Clicker training can also be a great way to interact with a bunny that seems to be only motivated by food. It can help provide some enrichment give you a fun way to play and communicate with your bun. (I noticed you had another post about her being bored, so this would help with that as well!).
The housing plan sounds good to me. 🙂
Does everything else seem normal with her? Good appetite for hay, poops, and activity? Just checking because sometimes underlying pain (possibly from dental pain, etc.) can affect behavior in subtle ways. I fostered an extremely shy bunny and failed to bond him with one of my bunnies. We thought maybe he was just antisocial, but then a few weeks later they found he had liver torsion. He recovered very well and seems much more relaxed now in his new home.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.