Husband venting to ex.

My husband was telling an ex girlfriend about problems he had with me instead of telling me so we could fix it. He was also telling her personal stuff about me which I thought was just between us without me having to tell him that, I was raped by a family member, private stuff like that. She was telling him what she was doing thru out her day everyday. He said she was a family friend and married, but I mean does it matter if shes married? I guess he didn't cheat but I feel like he has crossed boundaries and has broken a lot of my trust. I don't tell him anything anymore, and he's upset by that. I feel like you don't talk to exes it can spark up old feelings, maybe a hi how you doing but what he was doing was over board. Am I overreacting? He says I am. I feel crazy.