“It is not a mitzvah if it comprises someone’s emotional and physical safety.”
“I am not sure that is backed by halacha…..anyone?”
Of course it is. חייך קןדמים You are never (or at least rarely) supposed to do something that compromises your safety. That is something that I have asked sheilas about numerous times.
A therapist I know told me that she asks all her sheilas regarding her patients to a certain Rav who is known to be very machmir in general, and she is always surprised about his answers (he is usually very meikel in his answers to her). When she expressed surprise, he said that emotional health is very important.
My question was about making such a blanket statement. I believe it is not a general rule and each and every situation needs to be brought up as a shaila when it occurs. Stating it as a blanket statement can be wrongly misleading and I asked for sources that would confirm or refute that.