That is the solid guy right there. He won't succumb to manipulations nor to long debates over matters that are already clear to the unborn children.
It is fruitless to demand that your girlfriend should create boundaries for your relationship. Every mature person already knows the right things to do. Besides, she answered NO when the boyfriend asked whether she would permit him to do the same thing.
Sometimes, I wish I could just grow wings and fly away from everything for a while. No stress, no expectations, no noise. Just me, the sky, and a little peace. 🕊️