ODC, Compulsive Lying and Paranoia

I'm confused about diagnosing a recent guy I just ended a relationship with.  In the beginning, things were great, although he was coming on a little strong.  He told me everything I wanted to  hear and seemed to want to move things along quickly.  As time went on, I started noticing some odd behaviors and stories that weren't adding up.  This individual told me that they had OCD but that it was more regarding the way the mind thinks and logical order rather than germs, etc.   Every time I question him on one of his suspicious stories, he turns it around and blames ME for being a compulsive liar.   He is constantly paranoid that the world is out to get him and he is obcessed with needing to have answers to the most mundane questions.   Does the fact that he accuses ME of being the compulsive liar point to the fact that he knows this about himself?  I have noticed significant highs and lows in his mood swings and a very fast and aggressive approach to dating.  Well just this weekend, I found out the that loser is actually married with 4 children who he still lives with.  He told me he was divorced and that the ex wofe and kids lived in another state - that was a lie.  I'm realizing now that 99% of what this guy told me was a complete lie.  He  What might his actual diagnosis?