Well I think that once that door opens for him to hit u and think it's okay, it will never shut. a slap turns into a punch and so forth. It may not progress right away but the right argument can put him in uproar and theres no telling what he can do.
look out for your safety. I only say this because I am a domestic violence victim and my husband beat me so bad he couldve killed me. He had a drug problem and that set him off. But it doesnt matter. the point is he hit me. I wouldnt want to see you get hurt that way. The fear doesnt leave and neither do the memories. It has a lasting affect on you. so just think about marrying him. Think long and hard.He may not have a drug problem but he may have internal issues that make him feel its okay to hit you. I didnt learn from my mistake. I put my husband, who at the time was my boyfriend, in jail for beating me and he found god so i got back with him and got married but then he fell again and turned to drugs. I got beat every day.Finally i had my chance to put him back in jail. It was a rough road but now im married to him. It's more difficult when you are married. we also have a child. So much court and paperwork. U dont want to go through that so please just think about it. I sympathize for those who are in physical relationships. It seems like ive delt with abuse since i was a teenager. it's a nightmare! god bless.