If I remember my English history correctly, there was a tug of war between the king and the church’s bishops over government of the church in England, even before Henry’s problems with the pope over his divorce. Parliament granted him a divorce from Catherine of Aragon, but the pope refused to agree.
So Henry forced Parliament to declare him head of the Church in England so that the bishops wouldn’t be under the pope’s jurisdiction. Remember that Parliament has two houses, the House of Lords - which included the bishops - and the House of Commons And then he got 99% of the Catholic bishops to approve of this, even those that had held back previously.
Essentially the bishops agreed with the king to separate the Church in England from the universal Church.
Only the Bishop of Rochester, John Fisher, refused. He was arrested for treason, for refusing to recognize Henry as the head of the Church, and, even after being made a cardinal by the pope - in hopes of saving his life - he was put to death with Thomas More, who also refused to recognize the king as head of the Church.