Yeah, forgive her, take her back. Then she'll know that in the future if she does it again, you can both just have a good cry about it, then move on with your (exclusive?) relationship. No harm, no foul.

Open your eyes man, she was shopping around for something better at the beginning stages of the relationship- that in and of itself is not a huge deal if you guys weren't so serious then (women shop), but think about it. For the duration of your relationship, while you were supposedly building TRUST, she kept this from you the entire year.
2600 Reviewed by 2600 on . I Just Found Out I just found out that my gf cheated on me :( not recently but we have been going out for a year and 2 months and she calls me 2day and tells me she cheated on me a year ago, and i said why because i would never cheat on nobody honestly, and she said because at the time she didnt trust me :( i dont see how i did everything and anything for her, then she said she didnt know we were to get serious, and i love her soooooo much and i'm just real hurt, i could never see her doing that to me!! and Rating: 5