Conversation so far:
Did Devika Rani elope?
Devika Rani and Najm-ul-Hassan developed a romantic relationship and during the shooting schedule of Jeevan Naiya, Devika eloped with Hassan.
Who did Devika Rani elope with.
Devika Rani eloped with her co-star Najm-ul-Hassan.
Who is Najm-ul-Hassan?
Najm-ul-Hassan was Devika Rani's co-star in Jeevan Naiya.
Was Najm-ul-Hassan Devika Rani's husband?
Devika Rani was married to Himanshu Rai.
Did Himanshu Rai know Devika Rani and Najm-ul-Hassan eloped?
What did Himanshu Rai do after finding out Devika Rani and Najm-ul-Hassan eloped?
Himanshu Rai negotiated Devika Rani's return as his wife and then replaced Najm-ul-Hassan with Ashok Kumar.
Did Devika Rani divorce Himanshu Rai?
Devika Rani returned to her marital home with Himanshu Rai.
So Devika Rani didn't end up marrying Najm-ul-Hassan?
In her heart of hearts, Devika Rani knew that she could not secure a divorce or marry Hassan under any circumstances.
What did Devika Rani do then after not being able to marry Najm-ul-Hassan?
Devika Rani returned to her marital home.
So Devika Rani went back to her husband, Himanshu Rai?
Devika Rani returned to her marital home with Himanshu Rai.
What happened to Najm-ul-Hassan after not being able to marry Devika Rani?
Najm-ul-Hassan was dismissed from his job at Bombay Talkies. His career was ruined and he sank into obscurity.

Question: How did he take all this?
Self-contained rewrite: How did Himanshu Rai take this affair of Devika Rani's elopement with Najm-ul-Hassan?