
The Duchesses of Cambridge and Sussex were unable to become friends. Several factors prevented this.

Shopping incident
An unpleasant situation happened even before the wedding of Megan and Harry. The former actress lived with the prince in Kensington Palace next door to Kate and William. One day Markle wanted to go shopping. She wanted to call Middleton, but she refused. Later, the beloved of Diana's youngest son found out that the Duchess of Cambridge went shopping that day, and was amazed at such an attitude of her future relative.

Meghan is offended by Kate for refusing to go shopping with her, Legion-Media
Royal tears
The most controversial story in the relationship between Kate and Megan can be called their pre-wedding quarrel. The palace reported that Harry's wife brought the Duchess of Cambridge to tears. Markle claims the opposite. Be that as it may, disagreements between the monarchs did take place. Kate was nervous about her daughter Charlotte's dress, who was the flower girl at Meghan's wedding. The outfit did not fit the princess in size, but there was very little time left for redrawing.
Emotionality Middleton increased hormonal levels, which had not yet recovered after the third birth. William's wife took an active part in the preparations for the wedding of the Duchess of Sussex when Prince Louis was only a couple of weeks old. Megan was worried about the publicity and was also pretty nervous.

Meghan Markle and other stars who live in luxury homes
Prince Harry and Meghan Mark settled in a luxurious mansion in California worth $ 14.5 million. Meghan and Harry's American mansions include 16 bedrooms, 9 bathrooms, games room, gym, library and a private tea room.
“Both were shocked that the dress did not fit on the fitting. Each one had tears. There are two sides to this story. We heard both of them,”the source said.

Princess Charlotte's dress caused the duchess's quarrel, Legion-Media
Masks removed
In a scandalous interview, Megan said that Kate had sent her a note of apology. The former actress was flattered and wanted to forget about what happened. But the information about the quarrel spread after a while. Markle said she was slandered. She wanted to get the truth from the palace, but she was refused. Megan made it clear that in any conflict, Kate will always be exposed as a victim. Then she decided to just stay away from the Duchess so that she would not accidentally be called a villainess.
After the "Force Majeure" star announced Middleton's apology, other versions of what had happened appeared. According to sources, Markle threw the bouquet of the Duchess of Cambridge in the bin. But even here the palace did not give any refutations.

Meghan wanted the same perks as Keith, Legion-Media
Princess Diana's sons relationship
There was tension between William and Harry long before Meghan's arrival. However, Megsit made the situation much worse. Kate's husband was critical of his younger brother's decision to leave the post of acting member of the royal family. According to the Duke of Sussex, he and William are now separated by "space." Middleton and Markle support their husbands. They are saddened by this enmity, but each will insist on the righteousness of their prince.
Megan does not share Kate's views on serving the crown and personal life. She wants family relationships to be exalted over formal ones, but there are different traditions and rules in the palace. Middleton accepted them, and Markle persuaded her husband to run away from them. The son's act hurt Prince Charles. According to Harry, his father stopped answering his calls.

The British hoped the princes and their wives would make a great team, Legion-Media
Tension cannot be hidden
The fact that the friendship between the Duchesses of Cambridge and Sussex can be forgotten became clear from their last joint public appearance as part of Commonwealth Day in 2020. Their husbands again played a key role in this. If Megan had somehow tried to be polite to William and Kate, Harry ignored everyone.
Formal greeting was the only conversation between the duchesses. Neither Middleton nor Markle attempted to strike up a new conversation during the event. Then it became clear that the already cold relationship between Kate and Megan was becoming as tense as that of William and Harry.
Prince Harry was caught in hypocrisy. He called his friend an insulting nickname. Meghan Markle was jealous of William's wife because of the wedding.