Everyone has bad reactions to things at times. You (or MD) can hold a grudge against that person for a bad reaction for the rest of their lives, or you can get over it and move on.
If MD cares about you, she should be willing to put this one incident behind her and move forward with a positive attitude. What counts is that LT is trying NOW to be supportive.
“As I am sure any cat owner will be able to tell you,
someone else putting you in a box is entirely different
from getting into a box yourself.” —bisexualbaker