I have been polling my friends about how to reject men romantically. The one drawback about going on lots of dates with people is that there are rejections, on both sides. Almost everyone says to be direct, but I tried that and just don't think it's me.
I've been rejected enough times to know that it's not fun being on the receiving end of one of _those_ speech. One cannot be nice about it.
What's easier is to allow people to see for themselves why the relationship would never work. I am always my crazy self, so more often than not, men know exactly why they wouldn't want to be involved with me long term...
Besides, it cannot be easy to date someone who is just not quite ready to settle down just yet...