I was a power lifter for a long time and enjoyed the camaraderie that I developed with the men and women in the gym. I always went to a "gym" as opposed to a club, because that element of trying to look better or having the cutest outfit or being the biggest or better was absent. We all enjoyed lifting and we compared notes and encouraged each other's achievements. This notion of being stronger than the men is foreign to me which is why it has caught my attention.
Perhaps it either some kind of overcompensation for inadequacies she feels about herself, or maybe she doesn't do so well at being a "woman" and makes up for it by being a better "man" Obviously this is all just speculation and theorizing on my part and I have nothing to back that up.
I also wonder if motherhood was "uncomfortable' for her or being pregnant was out of her comfort zone, what with swelling breasts and belly, because these are female traits.
Either which way, her interest in being able to bench more than her lovers and wanting to be with men that she can beat in arm wrestling is fascinating and could perhaps hold some clue as to what happened to Kyron, if she is indeed involved.