well i was in the same boat about 2 years ago. and yes she was ****ing some other guy. but the diffrence is she admitted it. so i dunno. +1 on going to his house and talking to the wify and kids. that would be a good . Talk to her. plus its only been 5 months. not really long. i was with her a year till i found out. and if she did cheat on you, do what i did, do her best friend and then her cousin!!!!! i know it sucks.