My mother has emotional eating issues

I love my mother but since I have been on my weight loss journey and have been quite successful with it, I started to notice the emotional eating issues my mother has. Sometimes when giving her suggestions regarding her pre-diabetic situation she takes it very negatively and we start arguments with each other.

Last night, we went to a ski resort and I decided not to eat dinner but only have some drinks, yet my mother wanted to have a full dinner. She was unhappy with the disagreement and I personally also felt uncomfortable not eat anything when she was eating for some reason. I didn’t want to seem rude for not eating.

What are your thoughts and suggestions for this? I would like to lose another 9 lbs and maintain the weight (already lost 30 lbs in 2.5 months).