Don't know what my future will be!

Life sucks this year. My marriage is going down the drain. My husband doesn't think about the future like kids or buying a house. We are not getting any younger.We move our stuff back to his parents place. He said we will live there till his mom get back on her feet. I can't stand my mother in law. All she think about is money. It's been 4 yrs now and we still living there. Since I can't stand her I stay in bklyn at my childhood house.My father marry a crazy lady. I can't stand her either. She lazy and she a thief. Doesn't do anything in the house. She thinks she could laid her finger on me ha. Im a Brooklyn girl. I will kick your ass. She try in the summer she kick me in the back. I slam her against the wall. I told her it was a coward move. If you wanna fight me. Do it face to face. Since then she try to lock me out of the house. I told my husband we can't live like this. He said he doesn't wanna talk about it. I wanted to scream. I told him if this marriage is not working why don't we separated or get a divorce. He doesn't say anything. I don't believe in divorce. Smh don't know what the hell to do. He doesn't say anything. But he will tell you don't eat that you going to put on weight again. When I met him I was heavy then now. I gain so much weight since we been together. Begin of this year I cut out sugar drinks. I lost a lot of weight. He not skinny himself. He gain so much since we been together. He looks like he prego 5 months. I don't tell him he a fat ass. I think I should. Since i dont see my husband that often. I'm attracted to someone. My other problem is my brother he doesn't know when to grow up. He wants me to support him pay for his bills, etc. He got himself in trouble again and he might get lock up for more then a year now. I hope he learns when he get out. I'm not happy!! I do smile cause I have to. Do you fall out of love when you don't live together? Did I marry the wrong person? Did I rush into this marriage? Why am I attracted to someelse? What do I do now? Will my brother grow up? Will my future be better next year?