I like my ex best friends ex girlfriend
Why do you like your ex best friends ex girlfriend?
She's the only girlfriend of my former friend who made my former friend treat me better.
While you may like her, it is usually rude to go after the ex of a friend. You should talk to your friend first to see how he feels before pursuing.
Nah, I don't want to talk to him, I want her.
Seeing as you're no longer friends with her ex, going after her is a bit okay. However, you have to consider the drama his could bring, and the fact that this might hurt your former friend's feelings so much that you two may never be able to reconcile.