> You cannot control how a recipient receives your message.

My point exactly. Only problem: If A hurts B's feelings, that doesn't automatically mean B has the moral high ground and A is therefore in the wrong.

If B plays the "hurt feelings" card after A has done nothing to give offense other than start a conversation with "hello" in a text chat where they had no way of discerning B's emotional state, then that's the best example I've encountered yet, of a situation where A's hurt feelings clearly seem like A's problem.