It's such a fucking cliche. I found out yesterday my DH has been messaging a woman. He doesn't know I know, I saw his phone while he was using his indoor bike. Some app I'd never even heard of, I looked at it because I was curious. I don't know how long it's been going on, I couldn't even scroll back far enough to the beginning but it's months. There are literally thousands of messages between them. Lots of them explicit, photos and videos, but lots of them not. In a weird way it's the ones that aren't that are worse, is that stupid? They're messaging every single day, there are dozens of messages between them while he's at work. He's told her about stuff going on at his office that he hasn't told me yet, mundane stuff. Stuff about the kids, we have two teenage DC. I work a couple of evenings a week and he tells her when I'm due to work so they can plan their "playtime" together when they swap photos and videos. From what I can see they're planning to meet when Covid allows. He's told her he loves her but they talk about not breaking up their marriages. I've pretended I have a migraine since yesterday because I can't face him but I don't know what to say or do. What the fuck do I do?