To be furious with my DF over this?

[fatalflaws]

My adult DS has got to have some medical treatment for something. It isn't life threatening so no need for any drama, but it's quite a personal procedure. He told myself and DH, and I haven't mentioned it to anyone. A week or so later he happened to speak to my DF and mentioned it to him (they are close) and following this my DF phoned me demanding to know why I hadn't told him all about it, he has a right to know etc. Anyway I said it was up to DS if he wanted to discuss it and not my place to go telling anyone else. Anyway it's now transpired that my DF has told a couple of family members who've been texting DS sympathetic messages. AIBU for being furious with DF? It was not his business in the first place so to go informing other family members was out of order (DS isn't happy about it either!)

YANBU but I wouldn't get involved beyond telling your DF to jog on when he rang you complaining at you not sharing your DS's medical information. Your DS is an adult and will learn that his grandad isn't the most discreet person to share personal information with.

My Mil is a bit like how your DF sounds. She just doesn't understand the need for privacy, she wants to know everyone's business and will pass on the information. It's not malicious. She's just an open person and can't seem to understand other people aren't the same.

I haven't said anything yet since the phone call, I'm just quietly fuming!

Well DF has proved that you can't confide in him by blabbing it.

But as FullofJelly said, your DS is an adult. At least he knows you didn't blab it and that he can trust you.

It's not really you that should be fuming, it's your DS - who will no doubt learn his own valuable lesson about confiding in your blabbermouth DF in future.