I like this boy and we never really talk 2weeks ago we did stuff and he told ppl he liked me what do i do?

okay i was at my friend Kelsey's and we snuck out of her house to go meet my ex and mikey but it turned out mikeys cousin cody was with and i had with mikey but then cody was coming onto me and telling me stuff so i had with him now i like cody but it turned out he has a girlfriend. so i was like wow!! but when i was with mikey he told my ex he liked me now i wanna try going out with mikey but now he wont talk to me and we are back to complete strangers. what should i do?