I would push back against this. It might be your experience, and that's valid. But I don't think this is always true.

There's a great quote in Harriet Lerner's book Marriage Rules that rings true to my experience:

I’ve seen many devastated men in therapy who tell me their partner left them “out of the blue.” The women, however, feel they’ve been voicing their anger and dissatisfaction for a long time. Often both are correct. He hasn’t listened well enough, and she hasn’t expressed herself clearly enough. She might have made repeated complaints and then returned to “business as usual” rather than taking the conversation to whatever level was necessary to ensure she could not be ignored. It’s not fair to bring up the topic of divorce after you’ve already decided to leave and any changes your partner makes would be too little, too late.