You don't need someone to complete you! You need someone who will accept you completely. 

People don't change; they adjust but underneath they're who they are.  

When they stop crying over you, that means someone else is making them smile.  

'I love you' is not a promise just a feeling, so don't take those words as a guarantee they'll always be there.

Don't find reasons to stay with someone who always finds a reason to leave.  

Your relationship is not doomed because u argue, its doomed when you don't bother to argue anymore.