Dear Shy,

This 50 year old woman is NOT your FRIEND and IS NOT NICE at all. Growing up in Asia, I assume her eyes are shaped a little differently than Americans so, would you ever tell her that some people might have a problem being friends with her because of this?? Umm, no you wouldn't. Why, because you are NICE.
Being 50 and from a different culture does not excuse her behavior. Pick new friends who can be positive and uplifting, not ones who will drag you down.

Best of luck to you.