Sisters in law are fake??

Im confused , i dont talk to my sisters in law like text or nothing just when they come to my house thyre all friendly and everything .

One of them made a post on snapchat saying that “when you just starded watching the baseball games and all of the sudden your a fan” I had my bitmoji with the Astros gear whats wrong with that 🤷🏻‍♀️🤷🏻‍♀️

The other one was like “why are you going to pay $300 for driving school? I can teach you just let me know and ill come to your house!” (My brother was with us when she said that and he agreed to it) I send her a snapchat lastnight and said if she can teach me and says “Stop waisting my time” like whaaat 😒🤔

I need to stop being nice, it does not come back to you 😔

What should i do ?