Does that describe you? If so, I've written a post with you in mind, and on my heart. Here's an excerpt.
I've been overweight and I've been the ideal weight, and I know the frustration and discouragement and agony that attends the former. But do not despair. There is hope. The overweight believer has just as much reason to hope for marriage as does the physically ideal one. Why? Because God is able. And marriage is a gift from him; not a reward for those who manage to fit the current ideal of beauty.