About 3 months ago we fought and I decided to take a break with my gf. About two days after the break, her friend told me she went on a date with a guy, gave him head, finger than she asked him if he had a condom and they had sex in the backseat of his car. I asked her and she denied it About a day or two after that she came to my house and we ended up having sex and getting back together as a couple. Her part was foaming and much different that normal. I didn’t say anything at the time, but not like it is normally if we hadn’t at sex for a week. There was another guy she was kissing and talking to at the time that gave her a ride to my house and said she got lost after she said she was right near my house with him, and think that might be why her part was different during sex, but denied this when I asked. A few days later she admitted to having sex with the first guy, but admitted to finger and asking for a condom. I asked her how long they have sex for and she said ‘About 2 minutes.’ Recently we became so close and she told me that she felt bad about what she did with him while we were on a break and feels like she lost a part of me. About an hour after the apology she said that it really wasn’t two minutes, but she got finger, asked him for a condom, but it only lasted a few seconds and she told him to get off right away. I have felt so strong for her and don’t know if I should believe what she said for 3 months or what she told me yesterday. I’m so confused and just want to know the truth which now she says it was only a few seconds. Should I believe her, now that I love her I can’t bare not knowing what had happened. Should I believe what she said the first time as in two minutes or what she said now?