Out of control / Never undertand its TOTALLY my favorite manga!

I already read this one, and definitely love it. It makes me cry, it makes me happy, makes me laught. I just love it. The drama is so frisking good~! About the history: its excellent. There's a lot of details and drama.
I think there's a lot of people that had a lot of questions into they're mind, like "That's it?! Is already over?! BUT WHY?! HOW?!" or... "What? What do you with "the end"?? What about them?! What happened with them?! I don't even know how they're relationship is goinI! *sad*