How should I go about quitting this job, I'm in a weird situation (for me at least). Help?

I've only been working for about a month now and as school is starting I realize that a heavy work load and many extracurricular activities make having a job very difficult, if not impossible for me. Here's the weird-er part. I'm also getting kind of frightened by my boss/owner of the work place. He has an unfortunate reputation of being "creepy" and after experiencing it firsthand, I feel very uncomfortable in the workplace and would like to leave asap. He makes strange comments to me (sings my name, whispers praise, tries to give me a nickname, tries to dig details about my personal life), and he always wants to have a sort of "friendship" in between us and he'll keep me for sometimes an hour after my shift just to talk small talk. It's hard to explain everything, but the general picture I'm trying to paint is that he's weirding me out and I want out. Should I leave a 2 weeks notice or can I just tell him I quit and never have to come back? This is a minimum wage job if that changes my situation at all...