Maybe it's just me, but if you have enough time to say this sentence, you're probably not falling. You probably already fell.
If someone is falling from high enough then there is time for them to shout this sentence...
LOL. And translating as you're falling? ("Wait, wait, what's that word again? I've got a bad Internet connection!")
Is it possible to use the verb "נופל" for falling in love?
"היא נופלת באהבה".
Or is that expressed differently in Hebrew?