Can't win...

So my husband and I have been together for 7years. We have 5 kids, 3 are mine 2 are ours. We cannot agree on anything. I say left he says right. Hes upstairs pouting because I don't put him first. We have a 2yo and an 8mo. I cannot chase his whiney ass outside every time we argue or don't even argue. I made dinner. He took a 45min shower. I sat with the kids. He took the trash out, did the kitty litter and packed a lunch. Proceeded to get mad at me for not keeping the house perfectly clean then went outside. At what point do you say enough, it's time to just be parents and not in a relationship? I've tried and he gets mad because I'm not fighting for our relationship but more than not I feel alone and like he doesn't get it. I can't get wasted or just go on a damn date. I don't want sex in the living room... we have kids! Come on... I know I'm not giving 100 anymore but I'm tired of a fight about everything... I just can't win...