Standard girl situation

[unknown_one]

Last night was date #2 and we ended up making out for a while at the end. Somehow it eluded me on the first date but it turns out she is much less attractive than originally thought. Only problem is she likes me a lot, while I am somewhere between liking her a little and not at all. Also, as she left, she made a comment that basically meant she'll be expecting me to ask her out some time soon, when I don't really have that intention.

Given that its not my style to just never talk to her again, what my play? There's nothing really wrong with her, but she is average in terms of looks, and her personality is nice, but not really what I'm looking for. Also, I've talked with my ex a little recently about getting back together (we've been really good friends since we broke up)and I think this might work out.

Suggestions for stopping the bleeding before it starts?

Edit-- SIIHP hit and run involving alcohol is out of the question because I'm 18, don't drink, and we have a lot of mutual friends.