Yes it will get better. you have suffered 3 DDays that is not easy to come back from. I have been there too.
What helped me the most was to take the focus off my WH and onto myself. I have been doing it ever since.
They are the one's who made the awful choices and betrayed in the worst possible way... over and over again
You did nothing wrong. When I realized the issue was with WH and not me that is when the pain decreased significantly for me.