It's possible that having certain asymmetrical elements ENHANCE the symmetry of your face.

If everything is symmetrical, then any little imperfection or flaw will stand out like a sore thumb.

Personally, having a partner is not a replacement for friends. There are emotional needs that my partner fulfills that my friends can't and vice versa.

A partner can definitely become a best friend, but i don't think it's healthy to have every role fulfilled by one person as it makes you very dependent on them.