Why did Trump say he wanted to break off diplomatic relations with the UK? Did the UK do something wrong?

The United Kingdom is a follower of the United States. It is impossible for the United States to break off diplomatic relations with the United Kingdom. These are just Trump's superficial things. The United States will not break off diplomatic relations with the United Kingdom even if the United Kingdom does anything wrong.

U.S. President Trump said on Monday that he would "no longer deal with the British ambassador to the United States." Leaked cables last week exposed British Ambassador Darroch's blunt assessment of the Trump administration. In two tweets, Trump expressed anger at British Ambassador Darroch for describing him as incompetent and suggested changes could be made by the new British government.

I don’t know the ambassador, but he is not popular or well-received in the United States. We will no longer have anything to do with him. The good news for wonderful Britain is that they will soon have a new Prime Minister. Even as Trump expressed anger at Darroch's criticism, he also attacked outgoing British Prime Minister Theresa May's handling of Brexit.

She and her representatives made a mess. I told her what to do but she decided to go another way. While I thoroughly enjoyed last month's state visit, it was the Queen who impressed me most. Shortly after Trump's tweet, an administration official said Darroch had been denied access to a dinner hosted by U.S. Treasury Secretary Mnuchin on Monday night with Trump and Qatar's Emir ***.

The revelation of Darroch's candid assessment of Trump's leadership embarrassed British officials who scrambled over the weekend to find sources. They are also trying to work with the White House to contain the negative fallout from the incident.

Foreign Secretary Hunt, who is running for Conservative leadership, distanced himself from Darroch's comments, saying they were "personal views" and "not mine". Trade Secretary Fox said he would apologize to the president's daughter and senior adviser Ivanka at a meeting in Washington.

In a secret cable to senior officials in London, Darroch wrote that Trump was insecure and incompetent. He said Washington doubts whether the White House can become more normal; less dysfunctional; less unpredictable; less divided by factions; less clumsy and incompetent diplomatically.