Bad? Not necessarily. But immature, untrustworthy, undependable and troubled - yes. Walk away. Run.
Why do you have a boyfriend whos already a loser in the first place? Get your act together, educate yourself, and find your self worth, then hopefully youll find a guy who isnt such a loser.
Stealing and lying is just the beginning of a bad trip. He may not be a bad guy but one without morals. Eventually, that can come back to bite you. I had a boyfriend like that and he basically took advantage of everything and anybody. I dumped him with a big bang.