a liar is just one that tells lies. i get the lying about the age although i think that was wrong. i can -almost- understand lying about his occupation even though i think that's silly. however, lying about being left on a doorstep? why?? to create sympathy so she sticks around...that sounds a lot like playing her vulnerabilities. his pattern of behavior indicates an unwillingness to share the truth, whatever his reasons.

i agree: leave. run. he's already demonstrated that he can't be trusted...don't wait for him to lie about something that is truly important.

just my opinion,
shadow