Hi,
I suggest you go to a real person; such as a counselor, family or marriage counselor, or some other professional, and talk about it. There is nothing like a one-on-one conversation with a real person to find out about yourself.
You can search
http://www.google.com, or any search engine, typing in "pathological liar", without quotes. There will be many links to view and do some research.
Please make an appointment with some type of counselor. You can check your local phone book for possibly free services along these lines.
If you think your marriage is in deep trouble, talk with your spouse about it. Make an appointment with a Marriage Counselor.
Best wishes,
fredg