So basically Ariane repeatedly cucks her girlfriend with her approval but it's a sore spot in their relationship and Rachel tries to ignore it. Her flings sometime get attached to her and she keeps rejecting their feelings.
So instead of seeking a healthy relationship which would fulfill her emotionally and sexually she would rather be a toxic piece of shit to Rachel and the people she hook up with.
I mean, she wants to be seduced and form a connection with those people not just casual sex.
Ariane toys with their feelings, lead them on before sex, she wants them to get invested in her only to throw them away after using them.
What a repugnant person. I feel bad for Rachel who has to keep cuudling the bitch after the act, and sometime fucking meet and interact with the people who are banging the love of her life.