Husband has left me for a younger woman

[Bex]

I have cut off all contact with him apart from the kids but the last time he picked up / dropped off the kids it's felt like he is now doing the same 😩 Up until then he was still starting conversations with me or asking how I am etc but he hasn't even done that now- I feel like he's just doing what I'm doing which really upsets me! Is that normal or a bad sign?

I always make sure I look good, confident, am friendly but not chatty and he always looks non smily and a bit down and stressed!