Now you want him, now you don't

We are a nation of fickle people. We change our minds at a whim, doing whatever suits us on that particular day at that particular time. We do it with everything from our fashion to our food, and it bleeds over into our dating. A man who looked like a hot piece of meat last night might just look like cold leftovers today.

So what do we do? We throw him away -- figuratively, of course -- or set him aside until the next time we want him or just have nothing better to do.

It's sort of like that one friend who never makes concrete plans. You tell her that you want to hang out on Saturday, and she doesn't commit. The reality is that she wants to see if a better offer comes along, and if not, then she'll hang out with you.

This is how some people go about dating. They will go out with one person until, for whatever reason, that person no longer suits them. They might be single for awhile, or they might date someone else. Then, they get tired of that, and the original person is starting to look good again, they go back. At least for awhile, when the whole cycle starts over again.

What is it that drives people to go out with someone, dump them and then go out with them again, only to dump them later? Is it boredom, wanting the thrill of the chase or simply just needing someone to want them?

Have you ever been on either end of this kind of relationship? What were your motivating factors?