not talking to you and ignoring you completely or coming back late and telling you some stupid reason for beeing late
Anything your girlfriend (assuming you are a guy) would not want you doing with the opposite sex. Basically, if you are doing something with someone that you would not do in front of your girlfriend, then you are cheating. Cheating has to do with violating your girlfriend's trust. Some girlfriends may not care if you give another girl a massage, while some may. If your girlfriend is in the latter category, then you are cheating if you do it.
If you have a girlfriend and a boyfriend, then you are cheating on both of them.
maybe, maybe not.If he spends more time with the girl he is cheating on.
You can tell for sure that your girlfriend is cheating, by catching her on the act with her lover.
he is totally cheating.
I don't dream about your girlfriend
maybe because you never give the girl some space
then he must be cheating on you if he has a girlfriend? i mean if he likes you and has a gf then he must be cheating and wanting you?
stalk her
she is cheating on you.
Follow her
no