Most Helpful Girl
There is actually two ways for this to be Considered... Cheating.
Did she give him a kiss because he is a friend and she was Showing Some Sort of Friendship.
Or was she Making out with him, Swapping spit?
Good luck. xx
Most Helpful Guy
It sure does man. Drop her... you deserve better. But next time be sure you establish what's cheating and what isn't. That to me is full on cheating, but to some it may not be. Just let the next girl know what constitutes cheating to you.