Relationships/Boy struggles✨

ok, so I've liked this boy since basically kindergarten. in 6 grade for some dumb reason I told him I liked him and he blocked me. but now he is always like flirting with me and talking to me and once he played like guess who with me?!? (yk the game where someone puts their hands on your eyes and says guess who) like BOY what game are you playing? and recently I finally added him again and he accepted but then he blocked me again? I didn't even say nothing. pls tell me what to do idk what his deal is