your boo who ain't your boo
When everyone and their mother can tell you have feelings for someone and they clearly have them back but you're both too scared to admit it so you're stuck in that awkward "idk if we're talking" stage.
"Yeah, Ryan is definitely your boo who ain't your boo until he finally grows a pair to admit he likes you."
"Jake is your boo who ain't your boo cause you're too dang scared to tell him you like him."
"Jake is your boo who ain't your boo cause you're too dang scared to tell him you like him."