Aquilaruspante

Where are you based?

It seems to me your being too honest and up front too soon with the Girls your meeting, why tell them your only looking for casual and you dont want anything serious? It doesnt need to be said, they dont need to know that, take it at face value and follow your own agender.

UK women it seems are a lot less liberated than their continental sisters, there are society values they have been brought up to live to, although they may want to jump straight into bed with you (some do) they dont want to be seen as a slut.
If your telling them your not into relationships and not looking for anything heavy your putting them into a positon where they dont feel valued and just an object of sex so they are going to bolt.