Already separating but he was abusive (verbal gaslighting etc.). Suspect having proof he's a liar would be good for my mental health. Found a birth certificate among his papers from before we were married. His name listed as father and informant (so would have to be married to mother right?) Same surname as the mother.
It is a common name and he's from a large family who I've never met so can't ask them (I know major red flag territory.) Can I use this to search for a marriage certificate and confirm the date of birth and know for sure. We are married and declared no previous marriages when filling out wedding licence application. Do they double check these things?
Would rather him not know I know if that makes sense. I don't want to confront him.