Well basically, I've known this girl for a year or so, and we first started of as friends because I knew her boyfriend. They often had sex alot and they were both amazing together, they both lost their virginity to each other, when they broke up I was her shoulder to cry on and we got really close, we both told each other we 'like someone' we both know it was each other though. Then she got back with him, I don't know why, so I got angry and we became distant, then they broke up again (because he wanted her for sex) I don't know if they did. Then she got with this other guy who she knew for like a month and had sex with him too. Then they broke up. Then a month or 2 afterwards we got close again, closer than before. We talked on the phone a lot and met up a couple times. Then recently, yesterday; we met up and hugged a lot, then we kissed at the end of the day, it was amazing. She knows I'm Christian and won't have sex until after marriage and she said she's proud of me. I explained to her why I felt kind of upset because of her having sex and giving herself away so easily to those boys an she said its behind her and she's changed. I really like her, maybe even love her, we have so much in common and we both say we're perfect for each other, I said I don't want a relationship because I'm afraid we might ruin what we have, but I didn't tell her it's because of what she's done in the past. I don't know what to do..it puts a heavy weight on my heart every time I think about her having sex so loosely..what do I do..?