Look man, I've been there - it's been a few months since you've gotten any, and you have started hanging out with a girl and it feels good. You need some, and will put up with this stringing along crap, even more than usual, to get some. Don't.
You don't want to look back at how you got batted around like a ball of yarn by this girl. You need to make a firm decision that has consequences, meaning you go for the kiss and if she shoots it down then it's over.
Believe me, she will respect you more for having the sac to go for it. And you won't hate yourself for continuing to act like a flaccid little Weiner. Trust me!
It's a life lesson my man! I am 38 and married and just basically act like Johnny Cash as much as possible, it will take you places! Do it!