My husband (24M) and I (23F) have been together since highschool and have been married for a little bit over a year. My husband has always had a terrible habit of lying; not only to me but to family, friends, classmates, co-workers etc.. He has always been this way and most of the time his lies are harmless and he does it to make himself look better or to avoid conflict. Since we've gotten married I have noticed it more often and it's starting to get to me. I am diagnosed with BPD and anxiety so "trusting my gut" isnt enough sometimes.I dont know what to believe because I know he there are times i have a strong feeling he isnt honest but he insist that he is. There are times that I am wrong about when he's lying but there are times where I am also right.

This is starting to really hurt our relationship. We're both trying to be better and over the last month there hasn't been anything for me to be suspicious about. But I cant help the intrusive thoughts and I am unsure how to move forward. I guess what I am wondering if anyone has just accepted this behavior in hopes that it'll get better on its own? Im just so sick of overthinking and trying to put together details everytime i feel like hes being dishonest. Neither of us want a divorce so what I am looking for is just advice on how to cope so I can be more secure in my relationships. Other than this issue we get along perfectly; we have similar interests and goals and enjoy eachother most of the time. I just cant help but sometimes feel like he is living a double life. 

TLDR; husband lies and hides thing; i have BPD and struggle with intrusive thoughts. How can we make this work?