thats a very intense aspect, i think pluto in aspect to the moon especially a hard aspect seems to be very detrimental for the mother/child relationship. pretty much every person i met with an aspect like that has seemed to have issues with their mother or family in general
leo moon itself also seems to signify a powerful and domineering mother figure for better or worse
im also wondering if a planet like mars touching the moon would still a negative effect at least regarding the mother even if its a trine.. i like to use wide orbs now so i honestly believe it counts but you should also check for declination aspects if you havent
it is definitely a karmic relationship. i know that some people think that people who are generally incompatible are in a family together for a reason, so they learn to get along i suppose
i wonder what the house overlay is like in the synastry with your mom? i completely understand what you mean and i dont think you would think that she has a disorder like that for no reason, there is probably something going on but a lot of parents unfortunately dont believe in counseling
btw you made me check and a lot of my moms planets are squaring mine and her mars in my 4h too. im unsure about the accuracy of their birthtimes so i can only go off the basics but my dads sun conjuncts my mars too (i also have an aries mars

)