I have a friend, engaged and expected to tie the knot before the yr runs out but was surprised to hear when he said he is quitting the engagement. His reason: His wife to be is having an affair. He was told by the gals mother because the family wanted to know what went wrong. Recently, the gal told him she was going to see someone they both know, after 2hrs he called to check if she met the person only to be shocked when the gal said she is now in another state. Curiously, he called the guy his gal suppose to go and see but the guy said he has not seen the gal in 4months! When he confronted his gal, she started insulting him. They have been dating for over a yr but never had sex on the suggestion of my dear friend, and the gal is never a virgin!

What do you guys think, is the gal cheating because they dont have sex or she doesnt want this dude at all? Can my friend just quit his engagement based on speculation? Was my friend wrong by suggesting no sex before marriage? Your advice is essentially needed pls...