Thinking of you mutatio, I hope you can find some peace tonight. Remember that her urge not to come home is about her, not you. I get how they can self mediate with work, it just lets them escape from reality and my W has done the same. It doesn't solve any of their problems, it just delays facing them.
So what can you do tonight to take your mind off of her. Any movies you could watch or shows that you like? Maybe go for a late walk. Beat up one of her pillows. Make yourself a snack.
Many things you can do that will make you happy, don't let what shes doing control how you feel all the time. Don't just try to keep busy, find things that you really enjoy and do them.
Accept what is, let go of what was, and have faith in what will be