Run as far away as you can. Relationships are built on trust. If you already know they lie you will never know for sure if and when they are telling the truth. It the biggest red flag in a relationship.
There are literally hundreds of things to look for when someone is 'psychotic'. And no, if a guy lies to once, twice, MULTIPLE times, it means he is gonna keep doing it. Especially if you allow him to,
no, i would never take back someone who lies about there life cause thats something serious especially if your trying to get to know him he pretty much lied about everything its gonna be hard for you to trust or believe him if he lies about the most important thing his life.