Trump is a temporary simptom.
relations with the US will resum to normal as soon as Trump is impeached or resigns
It's not as simple as that. The Bush years still left a bad taste in everyone's mouthes, so whatever damage and fallout that Trump's USA will bring upon everyone, people will still remember and be affected by four years of fascism.
Besides, I don't expect the US to have any empathetic political candidate with how horribly right winged and imperialist the country's politics are, regardless of the party.