You have to be upfront and honest but be empathetic and polite. Tell her you think it is best if you not see each other anymore because you are interested in someone else. I realize it sounds easier said than done but it has to be clean cut because that is exactly it and there is no sense beating around the bush.
Ask her.
Ask around. Someone knows.
Get a boyfriend. Then just tell your girlfriend you found someone else.
He does not love you, he just wants to use you. DOES HE LOVE YOU? ARE YOU NUTS? IT'S EASY. IF HE HAS A GIRLFRIEND, THEN HE DOES NOT LOVE YOU. IF HE DID HE WOULD ONLY BE WITH YOU, NOT MATTER WHAT. YOUR GOING TO GET HURT. BUT YOU SHOULD. WHY ARE YOU WITH SOMEONE WHO IS INVOLVED WITH SOMEONE ELSE? HOW COULD YOU EVER TRUST SOMEONE WHO IS SEEING YOU WHILE HE IS WITH SOMEONE ELSE? HOW WILL HE EVER BE ABLE TO TRUST YOU? HOW CAN YOU HAVE ANY RESPECT FOR YOURSELF? HE DOESN'T, NOR DOES HE HAVE ANY RESPECT FOR YOU OR HIS "GIRLFRIEND" (WHICH YOU ARE NOT). JUST REMEMBER, YOU GET WHAT YOU GIVE.
talk to her. see how you can help repair relationship, OR confront and ask why she is seeing someone else and tell her how you feel about it
yes but don't tell your boyfriend/girlfriend why you are dumping them
this is bad! you should not be with her if this is the case!!! talk to her and say 'who do you prefer, him or me? ' if the answer is you then tell her you love her etc but if it it someone else then say 'it's over!!!'
what you can do is become friends with the person and when they break up with their boyfriend/girlfriend you can comfort them and then express your feelings
You can't. Unless the person is your own child, you cannot tell somebody who they can & cannot see. That's being petty & selfish. If you're trying to stop someone from seeing someone else because they're being harmed or you feel they're putting themselves into danger, you can contact authorities & tell them you suspect that the person needs help.
Are you the person they were cheating or was it someone else? If someone was cheating you, I would say I didn't want to be their girlfriend (or boyfriend if you are a guy) anymore and that I saw them cheating. If it is someone else that was being cheated, I would tell the person who is being cheated and tell the person what I saw the person do.
If he keeps in touch or initiates contact without needing or wanting anything from you is one way to tell. Also is he spending time with you. You can always ask him how he feels or if he is seeing someone else. Who is he seeing at lunch or weekends, if it's not you-find out if it's someone else.
when they call you. when they ask to see you. when they look into your eyes, and you get that feeling. when they ask your friends about you. when they get jealous seeing you with someone else. the list goes on.