friends or friends

Can you ever be true friends with an EX? Is it friends with your EX or being friendly towards your EX?

Xbah! I'm generalizing... and I sound like I'm narrating Sex and the City.
Pardon me while I go kick myself.

*kick*

My last entry made me think of this... I don't know if there's a real answer... but I always believe it is possible. Sigh, sometimes optimism makes life painful.