My boyfriend of 4 years lies a lot. The lies aren't very extravagant or unbelievable, they are very believable in fact. For example, when I first met him I asked him about the large scar on his neck and he said that he got in a fight with somebody at a concert and they pulled out a knife and slashed the surface. I believed him. And about a year ago I finally got him to tell me the truth. I can't recall exactly what it was, but it was something medical.
I notice that he lies to a lot to a lot of people about petty things, like where he is going or if he's on the phone, what he is doing; very unnecessary lies, which wouldn't affect the conversation or opinion of him if he did tell the truth. I ask him about it and he says he doesn't know why he does it and that he should stop. He's actually very good at lying but I don't encourage it.
More recently, he showed me a demo of "his friend's band". I believed him. It's no big deal. In fact, I liked the band very much. But in an attempt to find out more about the band, not to check if it's true, I found out that the band is from Australia and has two full length albums.
He says that he doesn't lie to me and I believe him. Yet, when he does tell me things or facts, I tend not to think anything of it. I neither believe him nor disbelieve him. He lies about really dumb things and I have no idea why. It's not causing problems in our relationship. And it only vaguely bothers me when I try to analyze why. I just want to know if anybody has the faintest idea of why he and other people lie this way?