There is a saying “Love is Blind”. Love isn’t actually totally blind because i believe loving someone is just like growing a plant. Caring, mutual understanding, respecting each other, healthy conversation are needed to grow a relationship. Most of the time, external outlook is not so important for some people. However there are still majority of people who choose their life partners based on their good looks.
In the eyes of Buddha, who sees human as a skeleton creatures, everyone is the same. Therefore, to achieve this ultimate level of consciousness and wisdom, ones need to see through what’s inside and not the outer layer part.