CherryDropz,

What an awful position to be placed in! Your intentions have been used against you; some men and women are predators and are out only for their own satisfaction and people like you who are emotionally and lovingly open are prime targets.

Sleeping with him on the first date is nothing to be ashamed of; in fact he's probably very experienced in getting women to do just that, so don't feel guilty about it. On top of that there's nothing wrong with being "Asexual" men do it and don't have any guilt and women have the very same rights to decide for themselves what they want.
So don't feel guilty and don't feel silly for being conned and used, it most certainly isn't your fault,

Loving thoughts,

Rhian