"I wanted to explain to him through this record, when he's in his twenties or thirties, who I am and why I voluntarily chose to dismantle his entire life in the pursuit of my own happiness," the star told Vogue.
"It made him really unhappy sometimes. And that's a real wound for me that I don't know if I'll ever be able to heal," she added.
The 33-year-old pop superstar has given separate interviews to Vogue's British and American editions - her first for five years - as she prepares to release her highly anticipated fourth album.