I think it's good to be a little ugly when dating; it means you won't attract vain people. By being ugly, unless your future partner has some strange fetish, it naturally follows that whoever you attract must be capable of seeing more than physical beauty.
I fell in love with an artist, and a beautiful mind, and by appreciating that beauty I couldn't help but find their physical traits beautiful as well. I believe if my past loves were to be examined "objectively" (if there's ever a thing), they might be said to be too pimply, or too asymmetrical to be "conventionally attractive", but I think that when you can find the beauty in virtue and character, its impossible to even pay attention to the physical features.