These damn cheaters

Last saturday, me and a friend of mine were at a birthday party. When we were greeting everyone there was a guy that catched my eye immediately. He was from a different school and looked exactly like Marcus from Ginny&Georgia but with ocean blue eyes, anyway we were really getting along and also flirted. He was sooo funny and we were on the verge of making out…

…BUT THEN I LOOKED LITERALLY 1 SECOND AT HIS PHONE AND THERE WAS A GIRL WHO HAD A RED HEART EMOJI AFTER HER NAME!! ( ꩜ ᯅ ꩜;) 

I WAS SO MAD AT HIM i really thought he was bf material but no no no i was sadly wrong

After that shock i immediately distanced myself from him because wtf his poor gf (yes it was his gf and not his sister or anything cause the guy who had his birthday told me) (╥﹏╥) 

At what point do u consider something to be cheating? Just talking to some1 else or chatting with another person? Tell me!