The idea of annulment and starting with a clean slate is not what life is about. You make a "mistake" , you live with it and move on. You cant just wipe it out.
For example, in answer to the question : "How many wives did Henry the Eighth have ?" any sensible person would say "6". But if you allow the idea of "annullment" to mean "it never happened", you get the following smart-alec answer:-
He had two, or four if you're a catholic.
Henry's fourth marriage to Anne of Cleves was annulled. This is very different from divorce, it means that legally, the marriage never took place. There were two grounds for the annullment, Henry and Anne never consumated the marriage, that is, they never had intercourse. In addition, Anne was already betrothed to Duke Francis of Lorraine.
That leaves five.
The pope declared Henry's second mariage to Anne Boelyn illegal, because the king was still married to his first wife, Catherine of Aragon.
That's four now.
Henry himself, declaring himself the head of the church of england, decided his first marriage was invalid on the legal ground that a man cannot sleep with his brother's widow. He claimed this was "God's law" and it went whether the pope liked it or not.
Depending on whether you believe the pope or the king, this brings it down to four or three marriages.
Henry annulled his marriage to Catherine Howard, because it was treasonable for a queen to commit adultery.
So ladies and gentlemen. That'd be TWO marriages only. Not Six, as your history would have you believe.