She sounds like absolutely everything he'd be annoyed by which would definitely result in an explosive relationship. The whole 'I can't stand you but let's do this anyway' sort of thing. He's associated with the Genoveses but as he's not Italian, he can't actually be a part of them. He's also prone to getting his hands dirty -- metaphorically and physically. Hard work his entire life, including now where he works at his sister's garage/chop shop. He would have had to be some sort of 'wrong side of the tracks' attraction for her, I'd think. As for Gino, he has no connection to him since he's in the wrong family but that could prove interesting later on if they have any further 'explosive' moments and Gino finds out. Even if they aren't happy about the arrangement, it's still a thing that he'd likely not be okay finding out about.