Clarify last sentence about long and difficult successful negotiation. Maybe the potential client desired to party with the lady. In order to party with her maybe a long and difficult negotiation was necessary. Definitely will say a long and difficult successful negotiation can lead to a positive party.
A few observations that are clearly my own opinions and only reflect on me.
1. If I really desire to be with the lady and we get into a long and difficult negotiation, that desire usually vanishes and I walk.
2. I can't see a long and difficult negotiation leading to a good party. For me I will be worn out and have less desire; for the lady I imagine she may not be as happy with what she is getting financially, may have been annoyed by the long negotiation, and may not put as much energy into it.
3. If the guy has a strong sex drive and desire to be with a certain lady, that may enable him to overcome some things, and just the fact that he is able to carry on the sexual activities that he wants can carry him through and everything else will not matter.
As I've posted already, my negotiations tend to be short and simple and are generally concluded within a few minutes. I offer a decent price for the time and activities that I want, and if the negotiations goes more than a few minutes, I walk.
I am not going to bother to detail the last two unsuccessful negotiations that I had, since I have posted about them before.
I will add that I do not consider it an unsuccessful negotiation or even a negotiation if the lady doesn't offer the services that I want. In that case a negotiation doesn't take place and I thank the lady for her time.