AIO: Wife Crossing the Line with My her Friend?

I (29M) had just finished dinner, and my wife (27F) was scrolling through her phone while I cleaned up. We were both tired, and she headed upstairs for a bath. Her phone kept buzzing with messages. Like, non-stop. At first, I ignored it—she has friends and group chats, nothing out of the ordinary. But after the 20th vibration in just a couple of minutes, I felt an uneasy curiosity.

I’m not the kind of person who usually checks someone else’s messages—trust had never been an issue in our marriage. But this time, I glanced at the screen, just out of instinct. Wifes best friend 'Ana' (28F) texting her.

MY WIFE was texting her best friend back and forth about OUR s*x life
"Have you ever thought about trying BDSM with him? No He wouldn't like it…"

They were talking about kinks i liked and "what she should get me to do"

These were private things I liked to do and share with her, insecurities, pleasures, displeasures. It wasn't even about her it was all about what i Did, and notoriously "What He couldn't do"

Like???

Am I overacting or should i confront her about this, i feel like the trust is gone. I feel disgusted at how someone could share something about me and not disclose it with me first. MOST OF ALL MY WIFE.