We just seem a little insane because we are complex, and men don't understand us. This is also true about men, we don't understand you either. Just think about it....we have to live with one man/woman forever, so if we didn't seem mysterious to each other (some would call this insane, but mystery can seem that way too) then of course, we would grow very boring, very fast.
Lesbians? Oh...you mean like the girls always say "All the good men are either taken by someone, or gay". It's a joke right? Or are you going a little...."insane".
