Trying to bond

I have 3 non bonded bunnies. Two of them lost their partners over the years. This isn’t their first date but I had to take a break because Olivia got and then had a tumor removed 3 weeks ago. Someone posted that they do a date with limited space to bond. I thought this may be a way to try while still keeping Olivia safe. None of them are pleased. But I’m hoping they can learn to relax around each other. They’ve done fine in a tub, bathroom, gone to the vet together, and cuddled in my bed. But introducing them to space with better footing leads to tiffs. So here’s hoping 😅