If you want to write a love song, you need to not try to write it for a particular person in a particular situation. It needs to be vague, otherwise you're going to fall into trap after trap of trying to rhyme with somebody's name. Keep it vague.
There's already a great deal to do writing the songs. And if I were completely in control of it, nobody would be able to say "this song doesn't work."
Yeah, except that when I write pop songs I have pretty strict constraints that I impose on myself. 69 Love Songs is a constraint. That the titles have to begin with "I'"s is a relatively strict constraint. Charm of the Highway Strip is all travel songs. And I am free to change the plot slightly to accommodate something that happens to rhyme conveniently.
