It's also possible that the person you're replying to is completely tone deaf to the signals they've been sending out and people are lashing out of them due to

It's also possible that the person you're replying to is completely tone deaf to the signals they've been sending out and people are lashing out of them due to an ongoing pattern of behavior. Usually when someone says "I've been completely normal -- I don't understand why people are so sensitive!" it's a red flag that that sort of thing has been going on.