What do I do?

My man has an addiction to porn. He won’t even admit it. And doesn’t even look my way. Never wants to have sex with me. And then tries to blame me as to why we don’t have sex. 😔😞 we have one toddler and one on the way. I’m broken

How do you address it or even start a conversation? Because when I do he instantly flips it on me and acts appalled that I would even think that. He pretty much laughs in my face, that I would even think that. Yet I already know. He won’t even admit it. Won’t even talk with me. And it just makes feel so low and completely unwanted. I feel disgusting

I don’t know how to navigate this at all. Do I stay and hope shit changes. Or is he just not into me and would rather fuck himself? And I should just cut my losses and leave?