I am still figuring out the specifics of their relationship, but for now I can say that they just had an incompatibility as a couple. Despite the initial attraction, in the long run they just weren’t suited to living together or being in a long-term relationship, so after around a year of fighting, avoiding each other, and the like they decided divorce was the best bet. Conway got custody of their children, Maria and Ilya, as he had always been the more attentive parent of the two. Maria and her mother don’t get along at all, so she never meets up with Holly, but Ilya was closer with her so he stays at her place on weekends occasionally.
You might be wondering ‘what about their third kid that’s listed on the family page?’ Well, despite a domestic relationship not working out, Conway and Holly remain on decent enough terms to find that getting together once and while to ‘catch up’ still works just fine. Andrei was the result of one of these meetings, so he’s the surprise baby born after the divorce. He lives with his father like the rest of his siblings and like Ilya visits his mother perhaps once a month or every other month or so.