How do you handle little to no intimacy from your husband?

I’m not sure how to handle this as it is affecting me a lot because I am a highly s*xual woman. He constantly makes some kind of excuse and pushes me away, a lot.
I’ve caught him with p**n many many times and just overall explicit content. So I am thinking maybe he isn’t too interested in me because of this. Sometimes we have s*x and many times we don’t and I literally don’t even know why since he refuses to communicate.

I keep myself up (I’m not perfect but generally take good care of myself), so I am not sure what’s going on.

We have had a lot of issues in this marriage, the issues mainly coming from him to be honest. He refuses to acknowledge any of it so I just got tired and keep to myself. It’s just getting really hard for me when I get aroused and he isn’t there for me.

I feel this is the last straw for me. He already hurts me so much but I overlook for the sake of the marriage and children. It’s like he just doesn’t care about anything concerning me.

I just don’t know what to do because I don’t want to fall into anything crazy because my mind wanders a lot. I need intimacy and it’s pretty much non existent.

Anyone handle something like this before? Thanks in advance.