Should I just sleep with him?

We haven't had sex in 5 months and I feel fine about it. I've been in an unhealthy relationship for almost 7 years. We have 2 yr old twins together and a house unfortunately. It's been 7 years of fighting, verbal abuse, belittling, and more. I'm really tired of it all and don't really feel things will ever change. He's stopped smoking weed and he's using that as a guilt thing. Saying he's been surpressed for 7 years and I haven't seen the real him. We sleep in separate rooms and he calls me the devil for separating the family. He finally has tried showing me love in my language but it's not enough. He blames me for everything and tries to guilt me into sex or blow jobs all the time. I've even told him multiple times to find someone else to do it. The thought of being intimate with him depresses me. I have absolutely no sexual or emotional feelings towards him. I ask him he wants to cuddle thinking I could try getting a connection but he doesn't really see the point. Just wants to get right to it then come back to cuddling. Should I just have sex with him to get him off my back since we love together or keep resisting and getting my life together? He gets angry and slams things when I don't give in and threatens to make me pay half the bills. He pays the big bills, I pay eveything else. I feel in danger at times so how can I want him sexually? Such a messed up situation. Any advice is helpful.