UPDATE My husband’s getting drinks with his coworker and I’m terrified.

Well, you were all correct.

I continued to monitor his texts without saying anything and he continued to be flirty, texting her good morning, telling her how he couldn’t wait to see her, and how happy he was to hear from her throughout the day.

They did go out for dinner and drinks the other night. It sounds like it must’ve gone well, since they’re now having flat out conversations to set the frame work for their affair. They’ve discussed that they want to keep things private and out of work, that she doesn’t like that he’s married, that they both have mutual feelings and are going to continue and are on the same page about everything, and that she initially didn’t want to start this but has developed feelings she can’t ignore, while my husband told her that he’s always had these feelings and couldn’t resist her. Not sure if anything physical happened, but I’m assuming it did.

I thought I’d be heartbroken but now I’m just furious. I’m getting my affairs in order to confront him and end the marriage.

Thanks for all the feedback and advice.