how to say good-bye

ok this what happen 2 days ago me and myex hooked up at his bro graduation party, both of us were more then a little drunk but he seems to think that we are back together even though there is no way this can work caues we have huge trust issuse.so how can i let him know it was just a one night thing with out going into a whole lot of drama

It's too late for causing drama. Your childish behaviour is what got you into this situation, now you maturity must get you out. Tell him, this is as far as it goes. It's as simply as that.

^ I agree. Just tell him it's that simple.

YEAh u defo gotta tell him because if u dont then its gonna make it v v v v v much worse....
u not telling him is kinda leading him on! not fair really...

but u gotta tell as soon as really.

GOOD-BYE or in viet is CHAO!