I think Jerzy would be a lot more alarmed and apprehensive about going if anything happened between him and Zii. I think he's slightly surprised because of undoubtedly all the things Angel told him about her and might even be curious to see if she lives up to the reputation. Moreover if Jerzy cheated on Angel I think the affinity for him would match what Dillon has for Matt.Snakie wrote:... and so we confirm: Zii banged Jerzy.
I think there's more than enough drama cooking with Jerzy going to see his ex's concert without either telling Dillon or possibly lying about it.