"Oh? Please do tell. How can I know if I don't like it or not if you don't tell me what it is right away?" Mary asked Alfonso.
When Alfonso was reporting to her about Johan's sudden appearance at the event, Mary admits that she was shocked to hear that, but she does not want Alfonso to know about it. The reason why she is shocked by that because Johan was not looking for a fight, but instead he was intentionally looking for Alfonso.
That kind of sign is very weird, even for Johan. Even before Johan betrayed the group, he and Alfonso were never close in the first place. If Johan would talk to someone like that, he would most likely go to Mike, but why didn't he go to him?