Totally agree with Aunt. How old are you both? Sorry, but this sounds like high school. Secure, mature people don't get jealous over friendships--unless you're giving out signals that yours might be something more than friendship. Are you? Could you deliberately be provoking jealousy? If not, and the jealousy has no rational basis, then I suggest that you run--fast! Irrational jealousy only gets worse with time.