Every single man I have met who is full on in the initial stages has turned out to be an arse of the first order.
It is not necessarily even about getting a fuck, but whatever it is, it is all about them and their addiction to the attention. How witty, what a great fuck, how good looking, how poetic, how artistic, how misunderstood, how they are too big for this world, how they are such a great deal, how they just have to have you, how boundaries do not apply to them.
They can provide a roller coaster of highs and lows, hot and cold. I don't care why, the only thing they have in common is being Fuckwits every one.