Am I overacting?

[Whoknows11]

So I have a lump in my breast and tell my boyf. He tells his teenage daughter as she's aware of things and knew something was wrong. She then tells her mum. My boyfriends ex wife then speak to him about it acting all concerned, asking questions etc. I then find out she knows and I'm not impressed. As a back story she's not nice to him and is v controlling.
I feel betrayed that he's spoken to her about me. He says it was a brief conversation if he needed to be with me she'd have their daughter.
What do others think please?

First of all - I am sorry and hope it checks out OK.

I don’t think there is any betrayal here.
I get it anything related to his ex is triggering for you. But he didn’t do anything wrong.

It seems that he couldn’t keep it from his daughter as she was there and knew something was up.
He couldn’t control what his daughter said to his ex - and it must have been scary for her, so she she spoke to her mom.
And - he can’t control what his ex speaks to him about. Also - she may be controlling and not nice to him - but she doesn’t have to be a horrible person.

I can’t see why he’s betrayed you really, his daughter told her mum which is understandable and then the ex spoke to your partner about it… it’s not like he initiated it. I’d explain to him that you want it kept private in future but it doesn’t sound like he’s deliberately upset you.

Thank you for your views, you are both right I'm just super sensitive at the minute and knowing his ex wife was wanting to get info from him about something v private isn't a nice feeling x

I think betrayed is strong, he really didn’t. He spoke about you and to someone you would rather he had not, which I can see could be annoying.

But they all spoke to people close to them, humans talk, always have.

He was indiscreet.

He's not close with his ex wife though. It's like he's scared of her and can't stand up to her. So he'd rather disclose private info about me than to tell her it's none of her business.