I think Owen is beginning to realize it is all coming out anyway, and denying it is a losing proposition, so he might as well take the advice of someone who has been there and done that. Leo is no dummy!
I think perhaps Aiden is a bit too positive and Owen is a bit too pessimistic about the likely scenario as it plays out with Janie. I doubt it will be alright and I hope it's not the end of the world, but Dom does throw some wicked curve balls at his characters and thus his readers....
Aiden's story is just so sad and heartbreaking. To lose your twin and father like that, the survival guilt and the fact that his mom started drinking, it's a wonder he survived.
Owen needs to come clean about Dan and Nick.