Hey Tim - how's the golf swing? Haven't heard from you for a long time. Wish you well amigo!
Not sure how many people know Tim personally, but in my opinion, he is a sensitive, caring person. For a large majority of men out there, they would not even agonize a minute over what he is. I have never met one, but I have heard there are some women out there who when finding out that they have "competition" they work even harder to please. Not saying this is a good thing by the way.
Tim, whatever you do or say is going to hurt her - so my advice is to make yourself out to the jerk who is not ready for long term commitment, "I am not worthy yada yada yada".
Again, in my opinion, you know yourself well enough, and have enough self esteem that no matter how you portray yourself to the woman, it will not do any permanent damage to your phsyke. (sp?)
Then again, I have been in a monogamous relationship for almost 30 years, so what the hell do I know about casual relationships.
Buena suerte amigo,
Mak