Argument about sex (long rant)

My partner and I have been struggling mostly financially and we argue a lot. But lately I have been going to therapy and it has been helping but he doesn't have insurance so it is tough. And we can't do couples therapy. I understand the stress. But I have been insecure about my body ever since I had our 1 year old. We had sex a month ago I belive and lately he just doesn't want to. We are together 24/7. And I give him his space, cool, clean. I'm not perfect. But he tells me he hasn't been in the mood lately. So I try and be understanding. I was putting something on YouTube for the baby and I noticed he was watching a lot of half naked women . And the other day we were having a conversation. And I joked about how the videos you might like are just women and he decided it and made up this big ordeal..look I know he will look and will watch things. I understand that. But the fact that he always lies about it to my face bothers me. And it makes me feel less of a women. I have lost weight and even before I had the baby I was super fit and he would not want to have sex and he'd have an excuse. But then whenever he's in the mood. I don't make excuses. We could have sex everyday because he wants to. And whenever he doesn't. I respect it. Then he has this big reason why. And I respect it. But then I see these women with unrealistic bodies and the very women he talks crap about. And somtimes make me feel bad because I wear leggings because I have a nice butt and he says I'm trying to show it off. It's so sad. And anyways, I rambled on and he was on the video game but I thought he turned off the mic because he pressed a button when I asked him if he was serious. And then he said he's never handing me his phone again and he will never hand it to me. I never look or touch his phone unless there's a valid reason. And I'm mad and yes I realize it was wrong for me to say this but I thought the mic was off and I said that I can't believe he watches this but he doesn't even f*** me. And he called me disrespectful because the mic was on and his friend that he's never met in person heard. And that he's going to talk that way infront of my family and then he changed it to my friends. And then I had to go to the bank and when I got back. I was engorged and had to breastfeed and out our son to sleep and he said no. And told me to deal with it and held our son tight and had his hand out so I couldn't get him and he raised his voice at me and I walked away because I'm not going to let him use our son as a pawn. So idk what to do or say. Hes about to give me the silent treatment which is a habit of his. I'm so frustrated and don't know what to do.