I need advice

Hi I need advice

Me and my partner have been together 6 years he's a massive gamer, you know stays up all night and sleeps all day unless someone tells him to come online well recently he's been speaking to a few woman on discord which I don't care about but 2 days ago I seen one of the woman he speaks to cuddling him from behind he tells her he misses her and now saying he loves her but when I asked about it he said he tells everyone he loves them because they are just friends, also a few weeks ago I asked him about a woman on his phone but apparently he didn't no who I was on about then I showed him and boom he got angry with me threw his phone at me, he smashed my car window due to this as well... He doesn't work or anything, I want to leave but I don't want to go back into the homeless plus I'm the leader of our house we have recently got, police can't do anything because he's not hit me hes just verbally abusive, and he's told me he can't tell anyone on his game he's away out with 'his partner' it's against the rules for the game he plays which I no that's aload of crap even when we are going to bed he tells them different...