It really is you, not me.

We've been together for almost 15 years and it is difficult for me to let go of you. I know that over the past few years you have been trying quite hard to change, but I cannot wait any longer for you to be who I need you to be. Introducing a new friend to you is always a challenge. I'm never sure if you'll get along. Things seem to be going along smoothly, and then for no apparent reason you stop talking to my friends. I'll spend hours working with you trying to understand what happened. What went wrong and what I can do to fix things.

You keep saying that you'll change. Every few years you buy a new suit and you tell me things will be different. But in order for the suit to work, you also need lots of accessories. We spend too much time trying to find all of the accessories to pull the suit together. You'll tell me this is it. This is the last item that I need. Then a few months later, someone will point out the hole in your jacket, the stain on your shirt, or your mismatched socks. Then we're back to the store. Trying to pull everything together.

I have spent years defending you. I have talked about your strength and ability to do things that others can do. I realize that none of that  matters if you aren't there when I need you. You are too unreliable. You make me work harder to enjoy my life then is necessary.

People usually say, "No, it's not you. It's me" when they end a relationship. I know this will be painful to hear, but this time it's you. I'm leaving because it's you, not me. Thank you for all that you've taught me over the years and the times that we've enjoyed together.

Please do not try to convince me to stay. There is somebody else who has promised to treat me better. They've grown and matured in ways that I fear you never will. I've watched how he's treated other peoples, and he's thoughtful and knows how to work smoothly with just about everybody he meets. He experienced some difficult times, and quite frankly, almost didn't survive. But he learned from those moments, and I believe this is the right choice for me. 

PC, I'm leaving you for MAC.