My partner and I first started dating when we were late teens.
Months into the relationship a girl I knew of through mutual friends claimed that they slept together. He strongly denied it but she remained adamant (my only communication with her was online). There was also no third party around who could confirm if it did/didn’t happen, and she never provided enough details for me to try and catch her out. The whole situation made me sick. Just to add, this girl did have a bit of a reputation for attention seeking/lies etc, but not ones this big to my knowledge.
I love my partner and made the decision to trust him, but fast forward 8 years and the event is brought up again by a friend, who also happens to know the other woman. I told her to drop it, but she decided to ask the other woman if it really did happen all those years ago, and she said yes it did, her story changed slightly as she said ‘he tried to have sex with her’ this time, whereas previously said they had sex.
It’s brought it all back for me, and I realise I can’t get closure as I wasn’t there and whoever is lying isn’t going to give it up. My gut leans towards my partner telling the truth, he’s pretty straight up and to the point, and I gave him so much grief at the time I think he’d just have admitted it. What I cannot get my head around is her motive, he clearly has one to lie for, not wanting to lose me. But assuming he is telling the truth, why on earth would someone want to tell such a huge lie to ruin someone’s relationship like that, it’s just plain evil? I am a moral person and couldn’t even contemplate such a thing. The only motives I could think of would be her wanting him for herself, but they hadn’t even met properly before this alleged evening, and surely she wouldn't go this far just for attention??
Any advice would be much appreciated