Mother in law / family opinions venting

So my mother in law / bf mom had the nerve to say that my baby is aggressive because of me. You know I felt some type of way. She had seen me get frustrated with my daughter but nothing extreme I just discipline her like giving her a pop but nothing too harsh . my daughter is very sweet but she is like aggressively sweet she sometimes likes to play fight like babies often do and im teaching her to not hit others so I’m unsure why she would say something like that and I’m so offended right now. If I could curse her ass out I would but I won’t go there smh