1. YYY means "You're my world" in English, so here are some romantic phrases using that abbreviation:
"YYY, you're the reason my heart skips a beat every time I think of you."
"YYY, you light up my life in a way no one else ever could."
"YYY, you're the only person I want to spend every moment of my life with."
"YYY, you're my favorite "why" in the world."
"YYY, you make every day feel like a love story."
"YYY, you're the missing piece that completes my puzzle."
"YYY, you're my forever, my always, and my everything."