Boyfriend of 3 years lies about EVERYTHING. He drives for work, and will lie about what town he is in, lies about what he ate, where he went, what he bought, how much it was, he even lies about brushing his teeth. Half of the time, i don't ask for info, he volunteers it, but it is a lie. I don't get it. we have a child together, but i don't think i will ever trust him again. will he change?

Simple answer....NO

Get out now,spent 12 years trying to change my lying partner,we have a 10 year old daughter and the damage it does is awful,she knows he lies not a good impression to give out about men. I used to protect her from it then always looked the baddie when Daddy had to leave but 2 years ago I told her as I didnt want her to discover it for herself as she got older and realised that he does it. He walks away everytime as if it was nothing leaving me devasted that hes done it again when hes always been found out. He tells me he knows that I know when hes lying,So why do it? Thats hard to take it makes you think he has no respect and thinks your an idiot. He has no friends coz they discover hes a liar,my family wont have him at family get togethers and my friends dont understand why I keep trying. His last batch of lies were 4 days ago and im out this time and staying out for the sake of my own mental health.