What does it mean when teenagers say "i Любовь you" to eachother, или when they tell their Друзья that they're so in Любовь with so-and-so? It's not true, forever and always love, not yet, but teenage Любовь does exist. What is it, exactly, though?
Teenage Любовь is falling in Любовь at a young age, possibly for the first time but not the last.
Teenage Любовь is thinking about someone and no one else in your spare time, and fantasizing about what "should have been".
Teenage Любовь is sometimes saying "i Любовь you" not because Ты mean it, but because Ты know its what Ты should say.