I think I'm going to get her a friend we brought her on a couple "dates "and there is a male fixed rabbit about the same age and size . They kinda ignored each other at first and then my bun laid down all chill and flopped out . Then they sniffed did a little mounting (I couldn't help but laugh because my bun was having none of it and mounted him and that was that). But then they hopped a bit and sniffed and rubbed faces and then my bun flopped back down the rex bunny went into to (for betterl of term) a little bread loaf position and then came and smelled me a few times about a half HR of laying with them both , she saw him sniffing me and she came over all curious and like " man that ones under my protection who are you and what are your intentions ". But he started licking my hand and she started licking/ grooming him. So ..... We should be good right ? I just don't want to adopt him and find out they're mortal enemies .... He's been in the shelter for 1 year 5 months and now 16 days (he's got 14 more days and he's a goner, so now he licked me I can't just keep him on death row) anyway you think they'll be ok because I want her to have a friend and not be so sad now I work 8 hrs a day but I don't want to come home to an episode of LAW AND ORDER B.u.n.
With bonding there are no certainties, but those are all very promising indicators that they could bond really well, and actually may even be a fairly easy bond. But no way to know without actually giving it a try.
http://www.saveabunny.org/rabbitcare/bonding-guide
https://www.cottontails-rescue.org.uk/information/bonding-bunnies/
https://wabbitwiki.com/wiki/Bonding_rabbits_together