Worth the read. Need help!!!

Okay so over the summer I had a lil week long “fling” with this guy and when school started back up we started texting again. Well this last weekend was homecoming and we went to the same after party, and I didn’t spend the night but I made him walk me home cause I live like a block down the road and because I was VERY drunk but before he left we made out on my porch for a short few minutes. Well In those short few minutes I got super horny super fast😬(not proud of it lol) but anyways I brought him inside and I got on top of him and we made out and did some stuff, but sense I was on my period we didn’t have sex. Anyways the whole point of this story which I guess I didn’t need to tell the whole thing to say this, but anyways I honestly wish I could have a real relationship with him and not just be fuck buddies ya know? But he’s soooo immature and I don’t know what to do☹️Any ideas?