Marriage Over?

I just need to rant and get this off my chest somewhere. I don’t have anyone to talk to about, I know I need therapy but it’s just not an option financially speaking at the moment. Anyway, I’ve been married to my husband almost 2.5 years, together a total of 5.5 years. We just welcomed our 3rd baby into the world a week ago. 3 weeks before my due date I found out my husband wasn’t being faithful to me…for the second time. He messages women online from our local area, sexts with them, exchanges photos, etc. the first time I found out it about, it was only 3 months after we got married, and that he’d been doing it for 2 years. I had just found out I was pregnant with our 2nd and he made an honest to god effort to fight for me then. I was planning divorce, and single motherhood, and he made all the efforts to “win me back”. He said it was an addiction, he started therapy, we started couples therapy, he went to addiction meetings, he started dating me again, etc. I honestly felt as though it was him making one stupid mistake, learning from it, and changing for me. That it wouldn’t ever happen again. When I discovered he’d started doing it again, it had being going on for 3 months, and our 3rd baby was almost here. It devastated me all over again. I never really got over it the first time, all the focus seemed to be on my husband getting through his addiction and nothing about my healing and trusting again, but I tried. So now, I feel as though my marriage is completely over. I had to shut myself off emotionally so that I could get through the last few weeks of pregnancy and having our baby. But now that I’m a week postpartum, and I’ve settled into a routine with the baby, I tried talking to my husband. I told him in all earnestness that something needed to change, that I still felt betrayed and devastated and I can’t go around pretending like nothing happened like he has been. Every time I try talking to him, he ignores me. He doesn’t respond, walks away, and never brings it back up to me. Never initiates conversation with me about it and doesn’t even acknowledge what I’ve said to him. I feel as though I’ve completely lost my husband and my marriage and it’s killing me. Even after all of this he is still my best friend, the only person I want and love. I wish I could hate him right now, it would make leaving and starting over so much easier. We were building a life together, we wanted a large family , a home in the country with room for the kids to have proper childhoods, a simple life. Now I can scarcely see that future anymore and it’s killing me. I wanted to grow old with him, and only him. I wanted to grow our family together. I wanted a life with him and only him. Now he isn’t even fighting for me. I’m so devastated. Things I thought were sacred to our marriage, he was using all that shit to sext with other women. The things I thought he loved about me, he chased after women with the complete opposite traits and praised them for it. He says he wants to fix our marriage, but he hasn’t made any changes. I tell him I need changes and he doesn’t fight for me. I asked him if he needs an open marriage and he says no, but how can I ever feel wanted, confident, or secure in my marriage ever again. He is ignoring my pain, just hoping it’ll go away on its own I guess. I want to stay, I want my marriage so desperately. But I fear that if I decide to stay, again, that it’s just giving him the idea that he can keep treating me like this. Thanks for the rant. I’m just trying so badly to not fall apart for the sake of my children, and figure out where to go from here, but I’m just so lost. I haven’t had friends since graduating high school, and my family has dumped me since I got pregnant with my first child. I just desperately needed to get my thoughts out somewhere.