My DW (I'm a woman too just to clarify) had a drunken kiss with a friend a couple of years ago. She swore it meant nothing, promised me they'd have no more contact, I saw messages to the friend saying this, that she couldn't risk losing me and had to prioritise me.
I have just found out that they're in touch again. Messaging each other most days, mostly friendly stuff, sometimes DW complaining about me, but nothing flirty or sexual. They seem close, DW saying how much she appreciates the other woman, that she's one of the best friends she's ever had and however it's a shame they can't be openly friends. The friend has been saved as a different name, so she's no intention of being open about it.
Aibu to be pissed off about this?