Does really like me or is he just teasing??!?

So today this guy came up to me out of nowhere put his arm around me and was like " hey whats your name?" then i told him and then he told me his name.. then he was like "will you marry me?!" i was like "umm i gotta get to know you first hahah" then he was like "alright.. " then he went to his friends and started laughing with them and kinda talking.. then he was doing that like all day.. even in one of my cles when the teacher called on me he was like "Shes my wife!" i was like wtf.. lol hes cute &i even had a crush on him before.. but i dont know.. later when he kept telling me he liked me, and i was kindly turning him down.. his friends were like "see you broke his heart now" "are you happy?!" *in a joking kinda serious way*.. then later in the day he was like "Ariana!.. *blows kiss* " i just waved lol, then Later (sorry my story is talking long) he was like "can i just get a kiss?" . Oh! and all thiss happened when his friends were with him so he wasn't by himself.. exept for the part were he blew me a kiss... lol. Is he just teasing or does he really like me? .. the thing im worried about is that in between those scenes his friends were like giggly/laughing.