First try not to get upset, understand she's think that way for maybe reasons you showed her and do your best to prove your doing absolutely nothing wrong, if she gets upset try to ease her down. People think better when there calm. Just don't try to get upset with her if you do there needs to be a reason why she's thinking that way find out then do your best to fix it.
Tell her the truth. If you have been cheating, hiding it means keeping secrets, and for a relationship to last and work well you need to be open. If you haven't, you have to find out why your girlfriend thinks you're cheating, whether you did something that worried her or whether she lacks trust.
Does she have a reason to be suspicious? If not, then maybe you shouldn't be with here. If she thinks your cheating, then that means she doesn't trust you. A relationship has to have trust. But if she has a reason to be suspicious, that is a whole different story...
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
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?
Follow her
stalk her
yes, it is
no