A lot of women are actually decently attracted to the sexy gothic bad boy bullshit, especially because when you do the math there aren't that many men who at least outwardly live an interesting life. If you don't know anything about him, dating a Tarl is infinitely more interesting than dating the dude in the man uniform that blends with the walls, who says "hi" and then fucks off. Or the nigger who very clearly just wants sex and literally nothing else.
Hell, this also applies to men. Men by and large (stupidly) idealise the very lay that Tarl got because it's at least apparently more interesting than just another woman.