Most Helpful Guy
Why? Because he likes you, and he doesn't take his girlfriend seriously. He's a cheater, what do you expect?
Don't let him pull you into his bull sh*t. Ignore his flirtation, or tell him to stop. Either way, don't get mixed up in what he's doing. He's using his girlfriend for financial support, so step aside and watch as he sh*ts where he sleeps, and see if he ends up homeless (if the girlfriend he's using has the courage to kick him to the curb).