move out! ASAP! I made it once a mistake to live for 3 years with a roommate who was constantly boosting his self-esteem by criticizing me for everything I did. I ended up with shattered self-esteem and that strongly affected on my later relationships. I still experience aftermath of sharing an apartment with him, as I’m going through very difficult breakup, which brings me back old feelings of inadequacy and being not good enough.

These people are dangerous. Keep out! You don’t want to let him bring you down!