[ Singles & Dating ] Open Question : Whys my ex acting like this? whats he doing? short question...?

he always teases me sometimes can be mean but more in a flirting way and i always catch him look at me...i dont get a vibe that he likes me..never tries to contact me except after i saw him he was contacting me a little bit...hes very immiture and hes young...his sister and i are best friends so i sent her a message saying how a guy asked me out and i sounded extremly excited and happy but he saw it instead and made fun of the fact i got asked out and stuff.........why is he acting like this? our convo:SAM GUESS WHAT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… BRANDON ASKED ME OUT!!!!!!!!!! im going today!!!!!!!!!!!!!!!!!!!!!! whoooo!!!!!!!!!!!!!!!!!! as you can see im devestated him:wat its jon. me:hey him:whoo...brandan..hahahahhaha me:you saw that....?? him:duh me:sorry i meant to say that to sam him: i no me: its brandon by the way...ttyl :) (this happened last night...will he try to contact me or something now?) then i left