Why would you be sad? There were never been 'us' all along... We were never you and me. Once you left me, without reasons. You come and go as you like.
I moved on, after many times failed trying. You didn't try to make me stay. This is not love. This is never love. This is lust. This is the result of lonely nights we've been through in our imagination, but I'm out of this sick feeling. You can enjoy your loneliness alone. Or with any girl you like. I won't care.
I just hope you can feel what I feel right now. The relieving feeling that I'm loved.
But I guess you're too busy looking for love, you never will realized it's inside you.