Hi and welcome.
Firstly, males can remain fertile until 6 weeks after being neuteured, so be careful if they are both freeroam, you don’t want an ‘oops’ litter from such a young Mum..
It sounds as if Misch is lovely but not all buns like to be stroked. It dépends on the life she had beforehand as to whether she will trust you instantly or not.
It’s good that he is grooming her, but what is the size difference between the two, because if she is not yet ready to be bonded with him and is very aggressive towards him, you really don’t want to come home to a battlezone and injured bunnies.
Does she have lots of chew toys and such like? Maybe she is treating him like a toy and bored?
Fur can fall out on its own all around a bite area, when another bun is biting a bunny. My recently bonded female bun has little nips (crusty scabs at the moment) on her bottom which are prob the size of a piece of sweet corn, but the area that is bald around it is about the size of a big grape.
The fur apparently falls out automatically so the other bunny doesn’t actually have to pull it out. (so bun 1 gets away quicker)
But you need to keep an eye on them and separate them if necessary until you can get the female spayed and she can calm down too for bonding.