Why LOVE is So Complicated....?

LOVE....Hmmmmm
love is the most beautiful feeling in the world. but why love is so complicated sometimes.
what are the reasons behind ???

well it is Question itself..
We all know that Nobody is perfect .NOBODY its look like simple but no one is trying accept simply.
I think there are many types of loves are there like .... brother to sister....mom to dad.....dad to mom .....sister to brother... b/f to g/f .....

BUT i think the main reason behind this beautiful feeling complications is forcing to live their life in rules , term and conditions.

i think love is unconditional, its not depend upon skin colour, height , weight .

so the question is WHAT MAKES LOVE SO COMPLICATED??

WHY COUPLES ARE SUFFER IN THEIR OWN CHOICE??
WHAT DO YOU THINK ????