Hello, and thank you for the kind words! Null and I have discussed this possibility before and come to the conclusion that, because Alec never stops looking for Isabelle and never stops wanting to get her back, it would be too dangerous to have Cy become Isabelle's dom in Divorce AU - too few degrees of separation, too high a chance he finds her. In any AU where Viola leaves Alec and takes Isabelle, as is typical for nullverse, they are far far far away from each other.

However, if we did chuck them in the same town, the odds are high that Alec would find Isabelle through the kink scene or through his routine predations on college students and would try to get her back. Cy, of course, would be having none of that, so if Alec ran into Cy in his efforts it would probably escalate until one of them is dead. Otherwise, Alec isn't above kidnapping Isabelle, which I think is more sadness than I'd like to give Cy and Lynn at that point in their lives. (I know, shocking given my tastes.)