Severus/Narcissa/Lucius Severus felt immensely uncomfortable in this situation, despite his attempt to remain cool and aloof. If this day could go any worse, he might just hide himself away in the library forever. He hated being observed, touched, and being publicly called out, and those were all things that Lucius was doing. Out of jealousy?
Shrugging off Lucius's arm, he allowed Narcissa to pull him toward her, eyes roaming the street before he finally felt the need to interject. Enough was enough.
"Lucius, it really was delightful, but I'm afraid that we must be off." Giving him a pointed look, he cut off anything else that his friend might add, turning instead to Narcissa and taking her hand, pleading silently with her to come along.