Have you also experienced that emotional mastery (wow, I'm actually impressed that I found such an expression in a self-help forum) is often confused with coldness, or sometimes even with un-emotionality, or "rationality", even arrogance/superiority/unsocialness?
Are they somehow related?
I don't have this problem anymore, but when I was a teenager people used to get puzzled when I didn't beat other people
("Man, if I were you I would really beat him up. Come on let's go and teach him a lesson."
"No... who cares."
"He just provoked you, etc. etc."
"I honestly don't bother."),
when I didn't drool for each and every loosely clad girl who spoke with me,
and similar situations which seemed to arouse other people at least 10 times as they did to me
Do you also think that emotional mastery can sometimes be negatively misinterpreted if not communicated properly (whether through body or verbal language)?