The man looked quite annoyed to have two love birds using the sacred building of knowledge and imagination to flirt as if they owned the place. Furthermore, this didn't appear to be his first time shooing flirtatious students away.
Vincent became a little flustered. He recalled how Kevin and his family would sometimes shoo couples from the library. This time it was he who was considered by the librarian as flirting.
On the other hand, Lilith blushed and hid behind Vincent. She wanted to visit a vast library for so long that she became nervous to hear the word "Leave" one more time.
"Sorry for the commotion, but we are interested to read books at this lovely library. I used to help store and rearrange books, and the sight of so many books surprised me." Vincent moved his head and continued, "My wife behind me loves to read books as well. That's why the two of us were happy to enter."