Jealousy is a signal, like hunger, that someone isn't getting what they need. Whether that's anyone else's problem, let alone yours, is a separate question. But yeah, it might be yours, depending on what you've told a person and since forgotten about. It's hard, I know.
I know there were times when I first knew you that I would have been happy to have been yelled at by you. Better than nothing sometimes, until one learns to know better.