Where are all the cool single guys in London?

^^^ he's right.

Often 'nice guys' fall down by being too doting* in the first place. Unfortunately people associate ease with lack of value. Nothing wrong with a girl thinking you like her, but you shouldn't let your self/affection be taken for granted. And if it looks that way, just walk away - do you really need another 'friend'?

You could also try being a dick. But then you'll tend to get idiots, psychos or people with low self-confidence. Or if you get lucky and find someone amazing, you run the risk of forgetting to switch back, carry on being a dick, and fuck it up.

That said, I'm not that great at closing, pretty much in most of areas of my life, so I'm probably not the best person to take advice from. But those points seem to have rung fairly true in my life.

• not the best word, but I can't think of a better one... maybe clingy.