Sorry, klutzo, I don't get on often. The way to calculate is do a "rolled yield" which means you would multiply each factor. So, .75*.75*.5*.5=.140625 or 14.1%. For an explanation:
http://www.qualitydigest.com/mar00/html/sixsigma.html
I'm quite smooth with those I have no interest in...quite the opposite when I am interested. I am fantastic at making friends. Pathetic at advancing beyond that.
CMRain nailed it. This same thing happened to me at your age. It happens to me now. I prefer not to hop in the sack. I like to get to know them first. However, once you become friends it is very hard to cross the barrier to something more. She will regret it if she doesn't exhibit some patience...
I am much more consistent in balancing going out vs. recharge. I can't imagine going out in big groups several nights in a row. After a night out and having to be "on" or at least trying to be, I usually crave a recharge night. For me though, recharge doesn't mean seclusion. One on one time...