Fully understand your situation, because it is soooo similar to mine.
Actually, I really mind all the stupid things they have done.
Last Fri was my hubby's birthday, we went out to have dinner. The seat I sat was facing to the air-con, my hubby worried I might felt cold and told me that he could exchange the seat for me, then 62 said,"oh, she is so healthy, not like you (his son)." I really felt very angry at that moment, and said,"of course, I need to be healthy as I can because if I am sick, no one will takecare me, I am not as lucky as your son." - His son is "treasure" but I am "grass" only.
99 always keep asking my daughter, who do you love the best? My girl said,"Daddy", then 99 is very satisfied with the answer.