In a relationship when things are really great you don't need to say anything and just enjoy the other person. Sometimes with a couple it gets dark and you don't know what to say and that silence can last all day. Other times you don't want to stop talking because you don't want to lose one another.
A mustache really defines your face. My dad had a mustache when I was growing up and I can still remember when he shaved it he looked like a completely different person.