Help! My girlfriend said she cheated on me when she was angry with me, then took it back after

Anonymous
Me and my girlfriend got into a big fight, she was trying to hurt me by being rude and it did not seem to work, I could tell I was making her much angrier than she was making me. finally I was leaving and she told me 'oh yeah? well I've been cheating on you,' and closed the door. I was really hurt and upset, id didn't talk to her for a while and when I did I was like what the hell was that I can't date you, to which she responded that she knew that would hurt me and that's why she said it, although it "wasnt true". Now I don't know what to believe, I want to believe her becuase I love her and I really think she is the one, but I could never be with someone who would cheat. Is this something a girl would really say 'just to piss someone off', or is it the truth and she really did cheat and then just didn't want to tell me
Updates
+1 y
What I'm trying to figure out is if any girls have ever said they cheated on a guy when they really had not, or if they only ever said it when it was actually the truth. Also this happened a little while ago its just been really eating at me for some reason
Help! My girlfriend said she cheated on me when she was angry with me, then took it back after
20 Opinion