I actually love this verse in the bible. There aren't truer words of today. For iron to be sharpened and become stronger, you must use iron. I think that many people are also that way. We need other people in our life to help build us up. We can't do everything on our own and so that is why God invented such things as best friends and girlfriends. It's not so much of them being there to make you happy, but moreso for them to challenge you to be everything that you can be and for you to live out your walk with God.

Proverbs 27:17