In the film, this was never revealed. In the book,
After Apollonia's death, Michael returns to the United States and marries Kay Adams, though she is unaware that he had been married, then made a widower while he was living in Sicily.
Not at first. Michael withheld a lot of information from Kay, which was always a problem for her. But she found out about down the line. Whether Michael told her or she heard it from Carmela or Connie or someone else in the family is unclear, but she eventually knew.
Michael's Marriage To Apollonia Was About Power
Understandably, without a strict adherence to power, there can be no Michael Corleone. His role is entirely suited to holding and maintaining power over every aspect of the Corleone crime family.
Apollonia is the passion of his youth, she's young, beautiful and devoted forever—she died young, leaving a good looking corpse—while Kay and Michael age and become... friends. His love for Apollonia is hot, but his love for Kay is deep. She challenges him.
He then flees to Sicily, where he falls in love with Simonetta Stefanelli's Apollonia. Tragically, she's later killed in a car bomb planted by Michael's bodyguard Fabrizio (Angelo Infanti), who betrayed him to his enemies. While Michael gets revenge on those who ordered the hit, Fabrizio is never seen again.
The Godfather's Michael Corleone may have loved many things, but his first wife Apollonia wasn't one of them. The pair were wed in Sicily in the mid-stages of the groundbreaking 1972 Francis Ford Coppola film, not long after Michael took refuge there after murdering police captain McCluskey and Virgil Sollozzo.
Michael may appear to get the better of the argument in Part II—he kicks her out of the house and keeps the children—but eventually Kay remarries and becomes the children's principal parent. Still, she admits in Part III that, even though she has moved on, she continues to love Michael and always will.
At the very end of the movie, Michael lies to his wife, Kay, about having Carlo killed. This shows that he's set his course: she won't be able to be a part of his real world and will be shut out from seeing his true, ruthless nature in action.
Kay is increasingly repulsed by Michael's criminal life, particularly the fact that Michael's button men have become Anthony's playmates. She also fears that if the baby turns out to be another son, it will tie them to the Mafia forever. During Michael's trip to Cuba, Kay decides to leave Michael for good.
In The Godfather (1972 film), what would happen if Apollonia was not killed and returned to America with Michael as his wife? He still would have become the Don of the family. He'd retain the same character he had before he left, and would not have become a hardened person since Apollonia is still alive.
2. Michael and Vito might have placed some of the blame for Sonny's assassination on Tom. Though it turns out that Carlo Rizzi plotted with Barzini to set Sonny up, Michael and Vito probably believed that Tom didn't do enough to stop Sonny from leaving the safety of the family compound that day to find Carlo.
Michael removes Hagen as consigliere in favor of having Vito fill the position, restricting Hagen to handling the family's legal business in Nevada, Chicago, and Los Angeles. Michael and Vito explain that the Corleones risk inciting a fight with the planned move to Nevada, and they need a "wartime consigliere".
When Michael is brought over for a family picture, he insists Kay join in, perhaps subconsciously to associate himself more closely with her than with the Corleone family. Kay is an independent, outspoken American woman—the opposite of the submissive female Corleones, most notably the delicate and powerless Connie.
My friend and I were rewatching 1 last night, laughing about how in the movie Apollonia was probably 15 and Michael was 25, so then we googled and - she was 16/17 during filming.
Did Michael ever cheat on Kay? Neither Don Vito nor his son Michael cheated on their wives in The Godfather.
Toward the end of Part II, Kay announces to Michael that she is leaving him and taking the children with her. He refuses to let them go, they fight, and as their argument escalates, she launches this verbal attack at him. Kay's chilling confession about the abortion is one of the trilogy's most dramatic moments.
He is fairly conservative in his social attitudes. It is traditional to wait “a year of respect” before dating again. Two,he may have initially thought Kay had moved on and found someone else. This was found to be untrue when he walked in on Kay and Carmela cozily chatting in the Corleone kitchen.
Does Michael ever forgive Kay? Michael and Kay tour Sicily together, during which Michael asks for Kay's forgiveness. Kay admits she will always love him, and they begin to rekindle their relationship.
Of all the betrayals that Michael endured, Kay's was the worst. It drove a knife right into the future of the Corleone family. First, Paulie (Don Vito), then Carlo (Sonny), then his bodyguard (his wife), then Tessio (attempted), then Pentangele (attempted), then Fredo (attempted).
At the banquet that followed, he confronted his father, along with Kay, and told him that he was quitting law school for a career in opera. He also told his father that he would not join the family business in any capacity, claiming it had brought him nothing but "bad memories".
Vito Corleone and the young Michael and his brothers. Born in 1920, to Vito and Carmela Corleone, Michael was deeply loved by his father, even prompting Vito to murder blackmailer Don Fanucci so he could support Michael and the rest of his family.
Thankfully, the two do end up together, eventually getting engaged in one of Michael Scott's most endearing moments, and later in season nine, a season and a half after he left, Michael returns for Dwight's wedding, where it is revealed that he is happily married to Holly, and the two have four kids together.
Though Holly does not make an appearance in the final season, Pam reveals that Michael and Holly are living very happily together with their children.