C39 Confusion!

Moo Yuhan was completely stumped by the question! She hesitated for a moment, unsure, and said, "I don't know either, but you have to have some sense of it in your heart..."

Yan Yu chuckled softly and said, "You've known Ann Beiqi for two years and two months. He started fooling around with Moo Jiaojiao just two months after you got engaged. So, for a whole year and nine months