Wiktionary
grande passion
n. An overwhelming love affair or infatuation for someone.
Usage examples of "grande passion".
A grande passion is the privilege of people who have nothing to do.
We are a vainglorious species, and if we were able to cop to the fact that even the most sauvage of what the French call la grande passion commands only twelve true minutes of intense pain before it begins to mellow, we would all dash to the cliffs and do a lemming.