but is there some kind of patten here I wonder....
Yes...men are full of sh*t
Everything anyone says on a post sex high should be taken with a pinch of salt - even in real life.
And those bookings that people harp on about without confirming, should be taken as that - not confirmed. Accept another definite booking, a bird in the hand and all that (hehe, I love that idiom in relation to prossie-ing - could you say a man in your hand is worth more than two in your bush, or is that uber crude?).
Also, I don't contact clients until they contact me. It's stupid, because even though I'm very attainable for a reasonable price, I think they like to think that you're not - and that they've won you in some strange cave-man evolutionary way. Just don't contact them - it makes you look desperate, and money grabbing (not you personally, but people who spam punters).