Would you still be with him?

So i’m 18 & my boyfriend is 20, we both still live with our parents. And well his family isn’t all that great. They steal sometimes and just aren’t good people. I know that doesn’t mean he can’t be a good person but i’m afraid he might end up like them. I think this because he already acts a lot like his father, which is normal but his coworkers have told me that he is a liar and he also steals too. I never knew that about him and i thought he was honest but they say he is not.

We already have been having problems lately in our relationship over small things, i really love him and i want it to work but i feel like he doesn’t make me happy like he used to. I’m just looking for advice on what you would do in this situation.