Some people marry for position, not out of love. King Henry had six wives half of whom he beheaded. It didn't deter the next four, after he decapitated the first, from the opportunity to marry a king and secure for themselves and their families royal blood status. The western idea of "true love" is fairly new, actually.
First of all, only two were beheaded.
He did not kill the first. The first was a princess of Spain and the aunt of the Holy Roman Emperor. That would have started a war England could not have won. Their marriage was annulled. He beheaded his 2nd and 5th Wife. His third wife died in childbirth. He annulled the marriage to his 4th wife. His 6th wife outlived him.
Divorced, Beheaded, Died, Divorced, Beheaded, Survived.
You can not say no to a King, especially one that was as insane as Henry later in life. The 4th was literally forced to marry him as political alliance between Henry and her brother. It doesn’t matter how she felt about him at all. His 6th and final wife cried when she was sent his proposal.
Anne Boleyn, his second wife and the mother of Elizabeth I, is the only one that can be categorized as a schemer. The others were literally forced to marry him by their families and/or because you can’t deny a tyrant. Even Anne was also pushed by her family.
Even his 1st wife Katherine who married him when he was young, handsome, and apparently not crazy obsessed with having a son did so not because of power but because she was virtually stuck in England after his older brother/her first husband died(yes she married two brothers) and the King of England(Henry’s dad) refused to give her dowry back to her parents. They wouldn’t let her go home without their money.
Why are you applying 21st century logic to the late Middle Ages when even upper class women barely had more rights than a brood mare? You’re a dumbass.