"Coup de foudre" isn't a rare foreign phrase, but it's
not all that common, either. I always find it interesting
to see where and when it's used.
Sitting in the doctor's office today, I was reading this
article in "The Smithsonian" magazine -- and there is was,
used in a different context, of course, but conveying the
same meaning:
Chevance reached Phnom Kulen in 2000, while conducting research for
advanced degrees in Khmer archaeology. “There were no bridges, no roads;
it was just after the end of the war,” Chevance says as we eat steamed
rice and pork with members of his staff, all of us seated on the wood-plank
floor of a traditional stilted house, their headquarters in Anlong Thom,
a village on the plateau. “I was one of the first Westerners to go back
to this village since the war began,” Chevance says. “People were, like,
‘Wow.’ And I had a coup de foudre - the feeling of falling in love - for
the people, the landscape, the architecture, the ruins, the forest.”
http://www.smithsonianmag.com/history/lost-city-cambodia-180958508/ Amelia Lourdes captured it very well!