Physically? Not necessary. If so inclined, I could eviscerate you psychologically. The damage inflicted would be far worse than any physical wounds. A scar to the psyche far outweighs a scar to the flesh.
But thankfully for you, I have no desire to ever be that cruel.
Awe, do not worry, my love. My intention is to remind her merely of my capabilities should I be pushed beyond my limits. I am not a pushover as she has accused someone else we know of being.
The two of you have clashing personalities. She does not dislike you, it's more that the two of you fail to be able to see things from each other's perspective.