Teen relations

Alright. So im 17 years olf and ive been talkig to this guy thats also 17. Weve been talking for about 6 months now and we do proceed in intercourse. Were not dating tho. And when my friend asked him why we werent dating he said bc "he didnt wanna have to worry about someone cuz he just got out of his first real relationship". I dont think hes talking to any other girls of having intercourse with anyone else but me. But it just still seems kinda weird that we basically act like were together but yet he doesnt want a relationship. Idk. Should i keep it going or cut him off? Thoughts, comments, and opinions welcomed please.