Why does love hurt?

Why does love hurt?
And ache inside your heart
Can the love you have for someone
End as quick as it can start
I have so many questions
About the things I feel
Once your heart is broken
Will it ever heal?
Can you end the aching?
Will it ever be the same?
Why does every guy
Think that love is just a game?
I wish I never loved someone
Until I actually knew
That you are meant for them
And they are meant for you
Then at least you would know
That the love was meant to be
Then instead of being sad
You could both stay happy...