Stuck and don't know what to do

I'm stuck in this relationship.. I feel so conflicted... I love it here in hawaii and since my fiance has such a big family, it's the first time I've felt like I've actually had a family since I was 12. Even though he hates his family i still feel like they accept me.. but he's constantly treating me like shit.. last week i was looking at a guy on ig and he punched me and i had to go to the hospital.. we have a good few days then it's back to us fighting. At times I wanna run away and just go back to doing me and making my money but then I think, is that what I wanna do for the rest of my life? Be single and have money? Or do I wanna stay with him and start a family? Either way I don't feel happy. Idk what to do