When someone's teasing you about something that you're comfortable with, it's a joke, but when they tease about something that bothers you, then it feels more like bullying.

I never thought about it in that way. Funny!
I think though, teasing is teasing, usually people tease when they got to know each other a while, otherwise you maybe not be allowed to make a twinkled comment.

... You could be right on the other hand, if it's done by someone I am not acquainted with, it might feel like an insult, where I don't get the humor or my perception is ignoring signs like a smile etc. ... Oooor, I stubbornly want to remain mad and sad. I oftentimes asked people here positively oriented questions, while some welcome them, others reject being asked questions which point towards their good potentials. I myself find that strange.

Usually I meet seriousness with seriousness and humor with humor. But sometimes, it enhances a conversation when I achieve to tickle out the humor out of a too earnest person, or to inspire a tendentious buffoon to express some deeper thoughts.

I like it being done to me. How about you?