She has a very outgoing and welcoming personality in general. Not just towards him. Also, I believe his wife was there along with others from DC.. it was appropriate for a representative from the first family to be on board. I believe Ivanka and the Trudeaus are also about the same age so of course there would be some common ground/comfortablity there, as well. Not everything has sexual overtones. They are social individuals/adults not highschool kids.
You didn’t read the Story.
She traveled to NY for this unofficial UN event. It wasn’t in DC
And Justin was throwing shade at the US.
Her husband was with Trump and Bannon.
She elected to go with Justin for the shade he was going to throw at us.