HAIR SPLITTING AFTER SEX

I have always had thin hair and use a lot of expensive shampoos and treatments to maintain a fuller head. I think it’s working and I recently started being sexually active with my boyfriend. He’s really into hair pulling and I too. But I told him to not do it so much because it always gets tangled and after brushing through it, I’ve gotten a lot of split ends and it’s thinner again.

Does anyone know how to not get the balled-up-hair-after-sex problem? Or should I do something other than brush it out? Any recommendations?