Hi, Jacob, it sounds like Roberta is giving you plenty of good advice here. I just want to reiterate the necessity of separating them for now until a month after one (preferably both) is neutered. They will not really bond well until their hormones have died down a bit, and at this age they will get worse in the next couple of months before they get better.
I urge you to read the Bunny Info. sections (drop down menu from the top green banner) for all kinds of great suggestions on habitat set ups, diet and foods, and bonding techniques. You can learn about how to bond ahead of time and be prepared to start after the neuter.
You want to get established with a rabbit savvy vet, often listed under Exotics. I think you guys are already networking about that. (Please, no negative statements about vets you don't like here. It's against the rules.) A baseline check up of both bunnies is important for their health, gender confirmation, and establishing with a vet you like. You can even schedule the neuter way in advance once the vet sees them and has an idea of when they will be ready. Get a price quote and save up for it, too. It's really important to have done, for health as well as an easier time bonding.
Check out that food list and the diet pages. They'll really help.
And again, try to get a second cage or construct a second habitat for one in an xpen or nic cubes. They need at least 3" apart. If it turns out that one is a female after all, cages close together can still result in a OOPS litter. Bunnies are determined that way.