he's mine but he's not

so this guy who's more than a friend but not my boyfriend (i still call him mine) but yeah we've always been all over eachother. we do everything a couple does and like we're pretty freaky people like when i'm driving i always make sure i have my hand on his dick and i'm the background on his phone in my underwear watching american horror story. we do everything a couple should do but we aren't one. me and him are in a good place and i don't want to ask him idk what to do