1. You're reading too much into a kiss. Why do people do this? If you dissect a kiss, it's really just two pairs of lips meeting. Who made up kisses, anyways? That's what I'd like to know. They seem to serve no function besides giving society something to get all dramatic and excited about. It's really just a useless physical act.
2. Okay, so you're all gaga about this kissing bit and now are all stirred up and bothered, even though it happened a half a month ago and nothing has come from it. Now, that's the real issue.
3. Yes, you are wasting time. You are the one with all these feelings now. You have no real right to expect that he has any of these feeling back, unless his concept of kisses are the same as yours, which you don't know at this point. So, it is your fault that nothing's going on. Give your feelings a voice and take control. You want him to slip away? By all means, sit there and do nothing and expect him to make a move. You want him? You go and get him. YOU go and get HIM. Snap him out of his "woe is me, I've been cheated on, all girls must be the same" bullshit, get some balls, step up, and take what you want. Gone are the days when it's expected that the guy make all the moves. You are no damsel in distress. You need no rescuing. He, on the other hand, is obviously wounded from ex-cheat. Go and be his heroine!
It's not that difficult. You can even use the New Year's kiss as an excuse to be brazen, just in case it doesn't work out the way you want it to and you get all embarrassed, if that's what you're worried about.