What am I going to do about this guy...I said yes to a date but.....?

There is this guy at my college who I met just recently. He's really nice, and I'd like to be friends with him, but only the second day after talking to him he asked me out on a date. I said "why not," and that was that (he did mention that my causality was amusing).

Unfortunately, since then he keep pressing me about this date and I've probably seemed a bit evasive since I've been ridiculously busy.

He's nice, we've talked a lot, and he's given me plenty of good help on this subject I'm having tons of trouble in.

I don't like him like that, and I only said yes to the date because I thought it'd be harmless and probably fun.

But since I agreed, he's kinda been suggesting things (nothing big...but it's not something you'd say to a friend). I seriously have avoided some weird situations so far, and I am nowhere near comfortable with having to continually do that. He really seems set on this date now.

A date doesn't mean anything...right? Because I think he has the wrong idea.

I was planning to go on the date with him originally, then I thought I would tell him on the date that I didn't think it was such a good idea and that I could pay for myself, but now I really am having second thoughts about this.

It's not just me....right? I've never gone on an official date before. Normally I am very evasive of anything romantic, any relationships. It's not me. I broke up with someone who was like this guy...because they just make me so nervous because they never let me go at my own pace. The fact I haven't known him all that long makes me even more nervous.

Like I said...a date doesn't mean anything, right? Do you think he has the wrong idea? Should I just put him down now and say I changed my mind? What should I do?