It's not only narcissism driving this but a continuation of his misogynistic and distasteful attitude to women who are clearly more intelligent and eloquent than he is.
He's clearly trying to demean her by portraying her as a little star-struck girl seeing her favourite pop-star. Sick and sad in equal measure.
I also like the fact that she indirectly called-out his cowardice w.r.t. Putin, Xi et al.
Irrespective of what you think of her and her party's policies it was exactly the right thing to do.
You get zero reward for kowtowing to his whims and insulting outbursts.
I hope others continue the trend and it becomes something akin to an "Emperor's New Clothes" moment... but I won't hold my breath.