I think its about being alone hence one being the loneliest number. Two sometimes isn't much better because you can be with someone and still feel alone. No can be considered the saddest experience because getting a no when you ask someone out is upsetting and finally, when that girl is gone, all you can do is dwell on the past.
I think its about being alone hence one being the loneliest number. Two sometimes isn't much better because you can be with someone and still feel alone. No can be considered the saddest experience because getting a no when you ask someone out is upsetting and finally, when that girl is gone, all you can do is dwell on the past.