Sexual weird messages to girls

I recently found out my husband has fake pages and messages girls nasty stuff telling them that he wants to spit on them and that he has jerked off to their Instagram pictures and that he wants to fuck them etc. I’m over here crying because we have a baby together and he has mentally messed me up in so many ways. I just want him to leave but he refuses to, how can I leave this toxic relationship safely? Im so hurt.