I was flipping through a Women's Health recently (I admit it), and I noticed an interesting poll. Women cited the following reasons as the most common breakup reasons: He changed. We weren't compatible. He cheated on me.

When I was little, it drove me crazy when my parents supported "No" with "Because I said so." I always wanted a reason. I'm not sure if knowing why always helps, but perhaps if you know common reasons guys break up with girls, you'll at least be able to see it coming. So, here are mine: