Prince Harry felt that his older brother, Prince William, became boring after he married Kate Middleton.

The Duke and Duchess of Cambridge were very close to Prince Harry before he dated and married Meghan Markle. Prince William, Middleton and Prince Harry used to attend royal engagements together that they were dubbed “the royal trio.”

However, according to Katie Nicholl, Prince Harry eventually felt lonely and detached. He felt that his brother got boring after being married, but the royal biographer wasn’t convinced. She felt that in contrary, Prince Harry wanted the life that the Duke of Cambridge was living. According to some sources, Prince Harry was already keen to get married at the time, but his then-girlfriend, Cressida Bonas, turned him down.

“Harry felt detached, lonely, and ‘rudderless’, and according to a friend he dreaded Sunday nights,” Nicholl wrote in her 2017 biography “ Prince Harry: Life, Loss and Love.” “He’d say ‘William’s got so boring,’ when in fact William was living the life I think Harry wanted for himself. I think he was worried he was going to be left on the shelf. He told me he hated being alone, especially on Sunday nights.”

At the time, Prince Harry had split actress Bonas whom he dated for two years. He was reportedly happy about Prince William moving onto the next phase of his life as a married man after he tied the knot with Middleton. However, he was reportedly “bitter” because his relationship with the Duke of Cambridge would never be the same.

“But he missed their friendship and at points he was very, very bitter about it,” Nicholl added.

When Prince Harry and Bonas were dating, the Duke of Sussex couldn’t stop talking about marriage and having children. However, she broke his heart when she decided to break up with him.

Nicholl said that Prince Harry was very in love with Bonas that he even tried to convince her that they could make it work. However, her mind was already made up.

Bonas didn’t like the unwelcome attention she received from dating a royal. She felt that the public watched her every move and according to her brother, Bonas is sweet but she is not a “tough cookie.”

Prince William, Kate Middleton and Prince Harry
Kate Middleton likes Prince Harry because of his being carefree. Pictured: Prince William, Middleton and Prince Harry during 'The Patron's Lunch' celebrations for The Queen's 90th birthday at The Mall on June 12, 2016 in London. Getty Images/Jeff Spicer