Upon closer examination one will eventually realize that falling in love does not hurt, for there will be another waiting there to catch you.
It's when that person turns their back to you and suddenly you're no longer falling in love but you've reached that point that point where it really hurts the sudden stop when instead of falling in love You've fallen just as far as you can go and You've hit rock bottom and upon those rocks our hearts are shattered.
It's like people say "It's not the fall that kills you... It's the sudden stop."