Becky dating above her looksmatch. Nothing to see here. The Mixedchadrone is most likely a tall, jock. So she is dating for status as well which is one of the reasons why she's so passive with him being an asshole.
Imagine Melvin doing this to her in the car. "Melvin, what the fuck was that all about? You can't run game like chad. You're too nice to behave like that. You don't touch a womens purse without her permission,ok?"