What should I do?

I need some serious help with this. I have explained to my partner he can’t be on Facebook all day long, yet he is. He goes to work, on fb. Comes home on fb. When I wake up I see him on fb and he’s even at a point of lying about it. I have an 8 month old that I’ve been basically raising myself. He doesn’t understand you can’t do that shit all the time. Idk what he’s doing so much on fb it’s a business page. He got rid of his personal fb and our relationship was better. I would constantly get messages from bitches saying he did this or that. Idk these people so he got rid of it. How many hours per day are you on social media? Your partner? I know this isn’t normal behavior. I’m a stay at home mom and asked him why he doesn’t touch me anymore, he claims I stopped taking care of my feet so he don’t want too. Well, I told him he ain’t fucking me until he looses some weight. I’m not going to give someone something they want when I get nothing of what I want. These are all wants anyways. He doesn’t even try to make me feel good. In a non sexual manner. He has convinced his therapist for over a year im bat shit crazy. He doesn’t even tell her the parts of him that are my reactions. She literally has given this mfer paperwork on serious mental conditions that she thinks I have. She ain’t never even met me. He also been lying about who he is. He told me he’s a narcissist, probably didn’t tell her.

Then after this I gotta go to court for my son. Like I have to go fight for him. There has been so much shit that has happened. He won’t let me go. It’s like he wants his cake and eat it too. Then my divorce will be talked about. I’m not ready to leave my son just yet with his dad because his dad won’t put him to bed and he won’t wake up with him. Like this morning I woke up with baby, he’s out there on fb. I needed to pee, he said oh I’m waiting to hear back from my therapist on fb. Like he doesn’t understand our son comes before any social media type. 8 months later he won’t ever get it.

He claims he was passing time waiting to hear back from her. He’s a fucking liar is all he is bc I made him show me his history tabs and low and behold there it was. The last app he was in. How are people actually addicted to fb and social media?

Update: yes he has a foot fetish. The point is, he wants all these feel goods like having sex or getting a blow job. I’m done. He can figure it out