when is enough, enough?

I was talking to a friend tonight about an ongoing situation involving a love interest... not mine, remember, I like sandwiches and naps after school... no time for a love interest.

Anyway, after hearing my friend's stories of waiting patiently for IMs, text messages, phone calls, and any other sort of acknowledgement of existence, I began to tire myself. It sucks to see your friends led on and bruised over the potentiality of a possible relationship. I mean, in a way, it hurts just like it would hurt you. I then asked, when is enough, enough?

We all, despite our pessimism, tend to be highly optimisitic. The mere fact that we enter into pursuits of love show that we have some sort of optimisim: "Woah, he/she is nice. I'd like a shot at something special with him/her." No one is TRULY a pessimist... although, at the present moment, I think that I might be the sole textbook definition of one.

But when is enough, enough?

Even though we are highly optimistic creatures, are we also highly masochistic?