I am constantly finding out little (mostly harmless) lies that DP tells, and we are getting into a terrible vicious circle with it. The ones I notice are mostly small things about his past - how long he was with exes, what he did with them etc. Eg, a small one is that he had an ex he was with for 2.5 years who he said had never met his parents or been to his family home (I didn't care either way. ) I was clearing out a wardrobe in his family home one day with their housekeeper, to put my clothes in it, and the housekeeper pulled out a skirt and said "oh that belonged to (his ex), we all hated it when she came here. His mother couldn't stand her."
Other things include telling me he's been with 20 women in his life, and the longer we are together, the more and more people we meet who talk about his exes, or he tells me about, or exes of his that we actually bump into - vastly outnumber the 20 mark. He also told me he'd never had sex with anyone in our bed before me when we first got together, then during a mundane argument he pulled out that he had slept with lots of women in our bed before he met me, then denied it later and said he was doing it to "lash out" and that it actually wasn't true.
Other times there have been bigger lies - he wasn't where he said he would be and I have found out either by seeing a receipt for somewhere other than where he said he was at the time he said or via chatting to his friends who inadvertently reveal where he actually was (all harmless places.)
Whenever I bring him up on these lies he gets upset and says he first of all denies they are lies - he says he "can't remember" what the facts were, or that he told me a particular version of events about the past because he thought it would make me happier and that the past if "none of my business" anyway. I tell him it makes me feel like there are bigger lies that I do not know about, but he just does not understand this. He says if I have found out tiny minute details about small things he said two years ago and compared them to "data" I had in the present day, then surely great big whopping lies would be obvious to me.
Now whenever any small lie is revealed to me, I instantly bring him up on it and we argue (he says "what does it matter whether in 2006 I spent 6 months in Australia or 3 months? How does that affect our relationship? You're crazy.") I have become like an angry mother tracking his every move and bringing him up on tiny things I find out. I have become totally compulsive and on a mission to find out whether everything he says is true or not. He calls me the "memory robot" and "inspector gadget."
I do NOT want to be like this. I have become an over-vigilant, nagging cow about stuff that happened 10 years ago, because I am now fixated on whether it's the truth or not. I just want to know I am being told the truth! I have become so obsessed with it and caused him so much grief that my MIL has had a (kind) word with me and said "stop fixating on the past, concentrate on the now and the future." She's right, of course, everybody should do that - carpe diem and all that.
But the bigger issue for me is whether I am with an untrustworthy person, and that's why I am fixated. There is no other suggestion of him being untrustworthy except these small lies. My friends in RL tell me I have two choices: Let go of tracking everything he tells you and just be happy (we are happy when I am not bringing him up on these white lies), or leave him.
I am now considering getting flexispy and putting it on his phone to see if I can trust him, but I realise that is just one further step down the obsessive/compulsive route.
Please someone talk some sense into me.