Forgive him. Forgive him for his immature decision. Forgive him for not realizing your worth. Forgive him for his wrong perception that he can replace you. He is still not enough elder man for realizing your worth as a woman.
Just forgive him.Not because he deserves it but because you deserve better.The first step for forgiving him is to understand that he was a complete idiot.Consider this and leave your expectations on him which you have developed, by thinking that he was a rational man.No, He was a damn idiot.
Forgive him for God’s sake.
Woman’s inherent wisdom.