Relationships should be something we enjoy being a part of, but if your girl manipulates you in any way, then it is already doomed to fail.
The worst type of manipulation is the one regarding sex where your partner will withdraw sex until she gets what she wants.
And even if it seems like a kid’s game, it is so much more than that. It can harm relationships and individuals in many ways and make them close their hearts to someone who is worthy of them.