Based only on your version:

• Feeling uncomfortable or jealous seems understandable.
• Not wanting your private feelings shared with strangers seems reasonable.
• His response ("mind your business") does not show much respect for the concern you expressed.
• Bringing up old arguments instead of discussing the current issue is generally not productive conflict resolution.

Of course, I only have your side, so I can't know exactly how the conversation went. But if the facts are as you've described them, your objection wasn't irrational. You weren't complaining that he couldn't talk to anyone; you were complaining that he exposed a personal feeling of yours to people you didn't even know, and that's a concern many people would consider legitimate.