Yeah, i think this behavior is common with ukes, especially when the uke and seme haven't seen each other for a long time and after they meet again, the uke sometimes tells the seme that he isn't the one his looking for, lmao. Cuz i've seen lot's of mangas where uke's acting like that huehue!
Wait what are their names? Who is luo cheng? It seems like it isnt the name of the uke. So was he calling someone's name?