ok im 33 and shes 23 so i know i shouldnt expect much. She works away (3hrs) during the week and comes home on the weekend (45 mins). We have been together for almost 2.5 yrs and she has always pushed the relationship along with the view to marriage and kids. I didn't really commit for a long time but i finally made the step up to take it a lot more seriously. I'd had found some suspicious msg's to and from guys in the past which is why i didnt commit as early as i should. Now that im fully commited i have found msg's that were from a guy saying he wished they could stay in a room in the city for his b'day and another msg saying that he couldnt make it to see her that particular night and that they could "go and get some dinner, see a movie and relax then have a sleep in". I confront her and she says he is a friend from before her and i met and that she is trying to set him up with her friend from work. I DO NOT BELIEVE THIS! I broke up with her and we are talking about working shit out but she is steadfastly refusing that she lied or anything went on. I dont want to walk away if she is telling the truth but on the other hand i dont belive she is. Please help me OT, thanks for reading.