I used to feel the same way as you but then I discovered I was wasn't really getting on well in female dominated groups after-all. It's all smiles and pleasantries on the surface but you're not one of them and aren't part of their gossip, but can quickly become the subject of it. If they really are trusting you with their gossip and speculations about other members then perhaps you truly can assimilate. There's also talking about sex which women do with each other far more readily than with men.