I notice even when I just want to make friends with women who are very attractive. They have very boring personalities.

Whereas a less attractive woman is much more fun to talk with.

Could it be because of the huge amount of attention they receive from men? If it doesn't work out they just move to the next guy.

Plus I imagine those guys that she is talking to, are trying to entertain her or keep the conversation going. So she doesn't feel the need to put in the effort.

Just my two cents