PORN-need some input from my glow ladies and men!

I understand that masturbation is completely natural and normal. I have done it in my time and I’ve also watched porn, however I’ve been with my fiancé for four years and I have no interest in watching it anymore...or masturbating, I would rather have sex. I get that many men masturbate more than women and I don’t take issue with him doing it here and there however his habit has become a problem for me. I know for a fact that he masturbates multiple times a day because he leaves the websites up on my phone, his phone, the laptop etc. he also saves pornographic pictures of close up asses and vaginas and boobs that are much larger and better than mine. On top of this when I try to have sex with him he is really into it but then he often can’t finish, he says because he’s tired, but I think it has more to do with the fact that he’s already ejaculated into a sock five times before I have the chance. When I bring this to his attention he treats me really badly, tells me I’m a child and that every man watches porn and that I’m super immature for feeling the way I do. I’ve told him that I feel like saving the pictures he likes of other women is kind of like cheating in a way and he has shamed me for this publicly in front of our friends or acts like me saying these things is me shaming him for masturbating. I have woken up in the middle of the night on several occasions to him either watching porn and masturbating next to me or being in the bathroom doing so, and I have told him many times that I would love for him to wake me up when he’s in that sort of mood so that we can be intimate with each other and he says that he just doesn’t feel right waking me...or that he tried but couldn’t (which I highly doubt since I wake up every time anyways). There was even one time recently when I woke up and he was on the phone and aroused so I decided to go with it and started giving him a blow job...instead of trying to have sex with me he stayed on the phone the entire time and finished in my mouth. I was so hurt but said nothing and still haven’t found the words because of how ashamed he’s made me feel. He keeps making comments about how immature my views on his porn habit are and I want to find a way to talk to him about this where his isn’t defensive and sees how hurtful this is. I’m sorry this post was so long but I need advice, if I am immature I need it to be explained in a way that doesn’t make me feel ashamed but I also need some help finding a way to approach this with him. Thank you all in advance ❤️