What is the way to end marital suffering and restore normal life, especially with the wife continuing to blame the husband for his past despite his repentance, and her desire for divorce due to the repercussions of this past?

You made a mistake by telling your wife about your bad past; you should have concealed yourself. Now, you must repent to Allah for all your past actions and for what you told your wife. To resolve the crisis with your wife, explain to her the necessity of preserving the marital relationship and forgetting the past, and that all humans err, and the best of those who err are those who repent, and that one who repents from a sin is like one who never sinned. Remind her that Allah loves those who repent.