And I seem to have offended people with the 'easy' comment. And I'm sorry. The fact is that I think a lot of men want the chase. A bit. We want to know that the woman we are pursuing, who may be wonderful, and funny, and beautiful, and gorgeous - all those things, is worth everything we're willing to put in to try and 'get' them. All the phone calls, dinners, texts, emails, waiting in a restaurant alone because you're fashionably late, the romantic moments, the things we do to make you feel special - all of that is to get someone who gets us, and makes us feel special, and wonderful.
And if you don't do all of that, the waiting, the funny moments. If you don't (and I'm sorry and I know I'm going to get flamed for this) - if you don't prove you're worth all of that effort from us, then we lose interest. Anything which is worth getting is worth trying for. If you just want a quickie with us, you may just want a quickie with the next guy, we want someone who knows how amazing we are, and will only want to be with us. If we didn't have to try hard, then the next guy won't have to try hard either.
If, however, there is too much chase, we lose interest too. Think of it like throwing a stick for a dog - however patronising that might sound. If you just throw the stick at it's feet, it loses interest fairly quickly. Throw the stick across 6 fields and it just goes and sulks. And we're simple creatures.