We know after the third chorus that the end is likely near.
It doesn’t have to be that way but that’s the way it is. It makes sense to us because we’ve heard it that way thousands of times in our lives.
Of course rules were meant to be broken. And this one often is…in wonderful ways…and in ways that are confusing and off putting to the listener.
Three choruses just makes sense and connects to most listeners. So if you’re having a hard time connecting, funnel your creativity into this tried and true rule.