Mikayla's Testimony

I need some advice. 😔 I'm so broken. Ok so when I first started dating my now husband I was upfront and honest with him about porn. I told him how I thought it was wrong and same thing as cheating and how strongly I feel about it. He told me he felt the same so everything was good. Well one night while we were together he done something new and it kind of got me thinking so I asked if he had watched porn, he said no but something just didn't seem right so I picked at him for days until I got the truth and he said that he did. That it was once. Ok, at the point I was LIVID this was back in May and I was 5 months pregnant. I didn't believe him at all so I purchased an iPhone program that shows everything deleted on that iPhone, I guess he didn't believe it could work so I asked him if I was going to find anything and now would be the time to be honest, he said no. Ok, cool, so I plugged the phone in and found deleted texts, which was other stuff not porn related that he had lied about so then he started getting scared. I asked once again if I was gonna find anything and he got quiet then said yea I was gonna find porn and a lot of it, he admitted he had an addiction. I lost it completely because that explains why his thing [penis] was always raw and sore, he couldn't get it to stay up, he was never in the mood, and the big one the lack of intimacy. [Editor's comment: He has Porn-Induced Erectile Dysfunction (PIED).] So we talked to someone about it and tried to work it out, he tells me he realizes the issue–let's me put a internet blocker on his phone so he had no internet only calls, texts, and games. Everything has been fine until yesterday, I'm at work and we are super super slow so I'm sitting there and turned on the baby monitor from my phone because I wanted to see my daughter. Everything was good she was sleeping on our bed. He had just got home because he left work "sick". Well, I was texting him and he was about to go to sleep. He had no idea the monitor was on. Well, guess what I get back to my desk and there he is doing his thing with our daughter sleeping right beside him in the bed mind you she is only 3 months old and has no idea but that's not the point. So I freak out, we fight from 3pm to 2am and he has no excuse as to why he done it. But he did admit that he lied when he said he realized it's wrong and he really actually sees nothing wrong with doing it. I don't understand how someone could not see anything wrong with pleasing themselves while looking at someone who is not their significant other. I don't know what to do. I'm so lost and hurt I feel like I'm not good enough and it's killing me.