First off, no more introductions. It’s an un-necessary risk and if something traumatic happens and someone sustains a terrible injury – it will be MUCH, much harder to bond as rabbits are known for holding grudges. This said..
Your three month old male may already be exhibiting signs of hormones so if he’s become territorial already, you’re doing more harm than good by trying to introduce. Also, since you allowed the younger male into HER house that’s just asking for trouble. You ABSOLUTELY cannot allow them in non-neutral territory when beginning bonding. It’s considered their area and they can get very aggressive about their territory.
With that said, definitely wait until he’s neutered to attempt introductions. With all the factors of him entering her home, his hormones possibly becoming a factor…. it’s almost impossible to base their future on this one date! I definitely would not think they will not bond because she attacked him though – it’s extraordinarily common for a rabbit to become aggressive and agitated about someone else entering their house. I would base her reactions on that, NOT think she hates him!
I have a bonded group of six and love to help bonders so when you are ready to bond, definitely message me and I can give you some tips, pointers, and help you along the way along with tons of other people on BB!