So, accidentally stumbled upon this youtube trailer of this book.
I know it has been going around for very long, but I've never read a single one of them.
And something caught me, that linked so well with my life, touched me and made me teared(:
Applies not only to couples, but also to friends.
"You're like the north pole of a magnet bar, and he/she is also like the north pole of a magnet bar. There's a force that'll always push you both apart. This force is called the obstacle, like interest differences, communication problems. However, if you put a metal bar in between, both magnets will stick to it & you'll be close to each other. That metal bar dissolves the force that pushes both of us away. 
& that metal bar is what we call, love."

♥