To add to my post above, when you're so drained and run down due to a relationship, it's good or helpful to take extra care of yourself... like, pampering yourself, making yourself feel good in ways that bring comfort, peace, calm and serenity... be good to yourself through the process. I beat myself up for a long time for marrying a narcissist and for ignoring the red flags I had seen in the beginning. It didn't help to beat myself up, and caring more for myself and having compassion for myself helped me to feel better far more.