Even before they were married, she refused to "allow" him to go on his family's annual Christmas holiday game shoot (birds) on their own land. He caved.
This woman is all kinds of a hypocrite. Her excuse over the game hunting was animal rights and vegetarianism; out of the other side of her mouth she told the press that she cooked a chicken for Harry for their first date—and check out her gazillion bucks' worth of leather bags, apparel and shoes.
She is often characterized as a malignant narcissist in the comments section of the DailyMail by about 95% of the commoners, who are incensed at her arrogance towards the Crown. Narcs will say anything to get their own way or assert control over their "loved" ones.
Not only did he stop hunting, he sold the heirloom Purdey rifles given to him by his grandfather, so MeGain accomplished a two-fer - separating Halfwit from family and a family event, and getting some cash to put in her pocket.