Boiling the diplomatic standoff down to North Korea's deepening feeling of mistrust, Ri Yong Ho sought to lay out a vision of peace on the troubled Korean Peninsula - provided North Korea gets what it wants from the United States.
In recent weeks, Kim Jong-Un has said he would permanently dismantle North Korea's main nuclear complex, but only if the U.S. takes unspecified corresponding measures.
But denuclearization negotiations have stalled.
The number of North Korean defectors to South Korea has fallen since Kim Jong-un came to power seven years ago, a South Korean lawmaker has said.
The Trump administration is preparing for a second summit with Kim to talk about denuclearization.
Most flee via China, which has the longest border with North Korea and is easier to cross than the heavily protected Demilitarised Zone (DMZ) between the two Koreas.
Washington is wary of agreeing to a declaration ending the Korean War without Pyongyang first making significant disarmament moves.
However, earlier this month South Korean leader Moon Jae-in completed a high-profile, three-day visit to Pyongyang - the first by a Southern leader to the North's capital in a decade.
Ri referred to a joint statement issued by Kim Jong Un and Donald Trump at a first ever summit between a serving USA president and a North Korean leader in Singapore on June 12, when Kim pledged to work toward "denuclearization of the Korean peninsula" while Trump promised guarantees of North Korea's security.
"However, we do not see any corresponding response from the USA", he added.
The minister also said sanctions against his government only deepen the mistrust.
U.S. Secretary of State Mike Pompeo met with Ri in NY and is planning to go to Pyongyang next month to continue discussions. We fell in love'.
On Saturday, the same day as Trump's rally, North Korea painted a less chummy picture of the relationship between the two countries.
Even so, the tone of Ri's speech was dramatically different from past year, when he told the UN General Assembly that targeting the USA mainland with North Korea's rockets was inevitable after "Mr Evil President" Trump called Kim a "rocket man" on a suicide mission.
"We fell in love", Trump told the crowd.
Trump on Saturday, September 29, elevated his recent praise of Kim to new heights, at a West Virginia rally in support of local candidates for his Republican Party.