You know, if a relationship has gone on for five or six years, that couple is not having as much sex as they were at the beginning of the relationship. In a lot of marriages, the sex stops altogether. So that's a very common thing, even if they still like each other.
I've also learned to only write songs and melodies that really work for my voice and that I won't have issues doing live. Because you can get really, really comfortable in the comping process: out of five takes, maybe one of those high notes that you struggled to do, nailed it, and then live you're having that challenge of really having to recreate that.