Vincent was only a little bit surprised when he saw Jezebel, and felt her loop arms with him. He kept his expression neutral, unwilling to allow any familiarity to pass over him. It would link them, he knew to act as if the two of them were good friends and any link to a fellow witch could easily get the both of them killed. Keep things friendly, but not overly so and the dangers of discovery would lessen. Vincent was truly more worried about what would happen were he to be discovered, and how it would effect Jezebel in turn - she had a better reputation to uphold after all.
"Good day Jezebel," He smiles politely "A leak you say? Well now, can't let that go unfixed." A leak in the roof huh, a good cover if anyone else were to inquire why Vincent would be at her place. Though it still may stir up rumors, knowing their little town and all its gossip.
"Shall we fix it now? Of course I have to be back in time to make sure Nathaniel is getting on well, he gets into far too much trouble as is with me around, only the gods know what hes getting up to while I'm gone." He inquires, glancing around as they walk, weary of curious ears.