Id suggest you read about it. The King was a devout Catholic who wrote a book about how important it is for the church to act as a moral compass over Europe. He also decided to marry his dead brother's widow Catherine D'Aragon as she was one of the most powerful women in the world being the daughter of Isabella d'Aragon and the aunt of Charles V who basically ruled half of Europe. That was until Henry lost hope in his wife producing a male heir and his lover refused to let him touch her unless she becomes queen.
Henry decided to commit a massive U-Turn on both church teachings and his wife and ask for a divorce. The Church surprisingly took an open minded view about and even sent Cardinal Campeggio who first tried to reconcile the couple then to pressure Catherine to retire in some monastery. Yet things needed to be dealt delicately as divorce went against the church teachings and Nephew Charles wasn't exactly someone the church wanted to piss off.
Well, time and patience weren't exactly Henry's strength as he demanded the Church to take the decision ASAP. Pressured by Henry's thugs Campeggio and his ilk decided to shift matters out of London and into the pope's court which infuriated Henry further. He decided to get back control, by leaving the church, marry Anne Boleyn and create a religion of his own. It turned out that Anne Boleyn couldn't produce a male heir either and was executed. In total Henry had 6 wives, 2 of which ended up beheaded and 1 who lived in misery for all her life. His dynasty died 1 generation after as his son Edward died as a young man, Mary died with what is thought to be cancer and Elizabeth was too traumatised to get married and rescind power to yet another male.
All English were effected by this madness. The Catholics suffered under Henry, Edward and Elizabeth while the Protestants suffered under Mary, whom, like her mother was catholic. There was also a crusade against England which was a failure, which lead to a counter crusade by the English on the Spanish which also failed