I am a firm believer that everyone, good and bad, comes into our lives for a reason. We are meant to learn from our relationships and grow as people. Relationships undeniably change but that doesn't mean they were for nothing. They all change us...for good.
I feel like a broken record but I LOVE GLEE. This is my favorite song from Wicked. The lyrics sum up the above. This is an edited, shorter version of the song but you get the idea...enjoy..