Falling out out love...

I’m falling out of love with my partner and I don’t know how to stop it. We have been together for 5 years. We have 2 beautiful babies together. Long story short we had a marriage ceremony, 2 days later he told me to not turn the marriage certificate in or he would get it annulled... I cried my eyes out for days and his only reasoning was that he wasn’t really ready. I’ve asked him then why he asked me to get married and plan something. He still had no logical reasoning. 2 years later he still isn’t ready. I haven’t even worn my ring in 1 1/2 years because it doesn’t even mean anything. Yet about a month ago he wanted a ring for himself but still didn’t want to get married...He doesn’t even bother to say goodbye to me in the mornings anymore. I just... I think I resent him and I don’t know how to talk to him about this. He barely helps with the kids. I do all the baths and clean the house. I’ve been nagging him about helping me with the house but he just says ok and never does anything because he’s tired 😤😤😤 Like I work all day too!!! I just know I deserve better but I want him to want to be that person. I don’t understand why he rather lose me. We had a fight about 2 months ago because of me wanting to get married and said he’d let me go to find someone that would do that for me. Like if you claim you love me then what’s the problem? Every major milestone in my life has been absolutely miserable when it’s suppose to be happy. When I told him I was pregnant both times he was pissed off and always left me in tears... I absolutely resent him for ruining the idea of marriage for me. When I see women posting their “Happy” engagements and pregnancies I just want to punch a wall because God thought I didn’t deserve that. I am honestly just so depressed. I can’t financially leave... I’m just utterly heartbroken. My bestfriend, the only thing that made life bearable, besides my babies, is moving away today and I just have no energy right now.