Boyfriend?

So this guy i have been talking to for like 3 months is pretty much my boyfriend. we do coupley things together and it is pretty serious. but the thing is, he never actually asked me to be his girlfriend. he always refers to him as “his girl” but he never officially asked. so what do i do because i want the label to make it official 🤷🏽‍♀️🤷🏽‍♀️