Trump has made a lot of controversial decisions during his time in office. His ongoing claims that he's going to "build a wall" along the southern border, his recent support of Brett Kavanuagh, and his racist policies against immigrants from so-called "s***hole countries" - to name but a few - have left him at the mercy of critics over the past couple of years.
But it is his strange relationship with the North Korean dictator, Kim Jong Un, that continues to baffle both his supporters and opponents alike.
At the beginning of his presidency, Trump appeared to have settled on taking a hardline approach towards Kim. In one tweet about the leader in 2017, the former television personality said: "Kim Jong Un of North Korea, who is obviously a madman who doesn't mind killing or starving his people, will be tested like never before!"
In return, Kim seemed equally aggressive towards the US president, and proclaimed last year:
"Now that Trump has denied the existence of and insulted me and my country in front of the eyes of the world and made the most ferocious declaration of a war in history that he would destroy the DPRK, we will consider with seriousness exercising of a corresponding, highest level of hard-line countermeasure in history.
"Action is the best option in treating the dotard who, hard of hearing, is uttering only what he wants to say ... I will surely and definitely tame the mentally deranged U.S. dotard with fire."
However, that all changed when the two had a face-to-face meeting earlier this year.
"We will be stopping the war games [with South Korea] which will save us a tremendous amount of money," Trump said after their meeting. "It is very provocative."
Since then, the pair have stopped hurling insults at one another via social media and instead taken on a more diplomatic approach to international relations.
But, if Trump's most recent comments at a rally last night in West Virginia are to be believed, the nature of their relationship has not just changed - it's made a complete U-turn.
"I was really being tough and so was he," Trump told his supporters. "And we would go back and forth. And then we fell in love. No really. He wrote me beautiful letters. They were great letters. And then we fell in love."
The outrageous claim was amusing to many people, confusing for others, and downright worrying for anyone who is concerned about Trump's priorities in dealing with leaders like Kim.
The contents of the letters that Trump mentioned is not known but, given the change of heart Trump has had over just a period of months, they must have been pretty special.
"I feel really great," Trump once said when asked how he felt his progress with Kim was going. "We’re going to have a great discussion and, I think, tremendous success. It will be tremendously successful. And it’s my honour. And we will have a terrific relationship, I have no doubt."
Whether or not Trump's love for Kim lasts remains to be seen, but, for now, it's something we should all be very wary of.