I've found much of interest on that site. There's more to be found in the rants section that touches on relationships.
A friend of mine refers to herself as a bitch and I've never considered her anywhere close to being a bitch. I mentioned this to her and figured out that we use the word "bitch" differently. I found the Heartless Bitches site shortly after that and have a better understanding of the difference in usage.
If I ever get the time, I'll post links to all of the rants that touch on relationships for comment.