upset

Who might we have upset with our joy?

Somebody who is easygoing is relaxed, and they don't get too upset or angry over little things.

Whatever, just tell me, why are you really upset?

And we had 'easygoing', which means relaxed and not easily upset.

Had we ever been too conspicuously happy, we might have upset a parent who was battling a sense of despair or resignation and was furious at the deprivations they once had to endure.