Otis Redding's "I've Been Loving You Too Long"

I just listened to a compilation album of Otis Redding (it's probably only the second or third time I've listened to it).  In any case, I noticed the line "My love is growing stronger / As you become a habit to me" in "I've Been Loving You Too Long."  I think it's a reference to "You're Getting to Be a Habit with Me."  Likening love to a habit is in the title itself and the lines:

Oh I can't break away; I must have you everyday
As regularly as coffee or tea
You've got me in your clutches and I can't get free
You're getting to be a habit with me

Still, with the number of love songs that exist and the various similes and metaphors in them, it might just be a coincidence that both of these songs make the same comparison.