Pursuing her may not help, you're right.

Keeping your heart open and trying to better understand/improve will help. It will also help you show your D that you didn't give up. Your W may notice, and may not. But if you've truly given in/up, your face will show it.

Show a smile, hope, love. That doesn't mean pursing or hiding your hurt when you're hurt. It means over all, be a good, happy person. Enjoy the good things in your life, like your D for now. Later on, your W will see that even if she can't/won't today.