Marriage sucks

The marriage I’m in is the exact reason why I never wanted to get married I never wanted to feel trapped in a loveless relationship I just wish it could go back to how it used to be to be I know marriage is hard but I also know that my husband is not in love with me he may love me but he is not in love with me he would rather go to bed before me so he can look at half naked women now for context he always goes to bed before me bc he says he hears weird noises and can’t sleep if we both come to bed at the same time but he stares at instagram models before bed it wouldn’t bother me If he showed me any affection I’ve even lost 40 lbs and still he doesn’t care if we have sex he immediately leaves and sleeps on the couch after throwing me a towel someone please tell me I’m wrong and it’s all in my head I hate feeling like this and everytime I talk I can feel him shut down I don’t even get but a peck when he get home from work I sing “consider me gone” by Reba almost everyday