Is the fate of marriage written for every person by God?

Everything in existence is decreed by Allah Almighty, as stated in the Hadith: "Indeed, the first thing Allah created was the Pen. He said to it: 'Write.' It said: 'My Lord, what shall I write?' He said: 'Write the decrees of everything until the Hour is established.'" Ahl al-Sunnah believe that everything that happens in the universe is predetermined and written, but this does not contradict the servant's will and choice. For the servant's will falls under Allah's power and will.