"Daddy, my love, you"
It's a very affectionate phrase that is likely used by a woman addressing her significant other.
Here's a breakdown of the words:
* Papi: A term of endearment for "Daddy" or "Dad"
* Yo amor: "My love"
* Tu: "You"
In English, you might say something like:
* "My love, you're my everything."
* "Daddy, you're my love."
* "You are my love, my darling."