Are we not exactly sure that Dylan is in his bedroom or is he out with ellie? Because at night, Dylan has the habit of watching his mobile or TV in the living room, rather than the bedroom. And if Dylan already knew his mother had gone to the Sam show.He's looking forward to Sophia coming home. Even when he is in his bedroom, Sophia arrives home and immediately he learns that she is here.Then he can come talk to her. And everyday As soon as Sophia gets home before and after leaving the house, Sophia comes into her children's room (i.e. Dylan and Ellie's room), see them and talk to them.Then she has the habit of going to her room and changing her clothes.This has been shown many times since the beginning of the game.In one of these scenarios, Sophia can get caught and he can ask about it.
As we all know Sam is a Big Pervert.And he is not the one who keeps to himself the feelings of the mind and what he has seen, he has the habit of telling everything to Dylan or someone else. Maybe one day he'll tell Dylan that thing, Then Dylan gets angry and He could question Sophia for that matter. Sophia may not have answered Dylan's questions at the time. Maybe if Sophia went to the concert wearing a modest dress and Dylan saw her with Sam, he wouldn't have to question her. But I think you noticed that dress and even discussed it. The dress Sophia wore to the show, even those women of her age, would not go to the show wearing such dresses.But she goes to the show wearing a dress for the sake of Sam and the way he likes.
When she returns home with Sam, And reveals that the dress she is wearing is very revealing drees, like a dress worn by teenage girls and she looks like a street slut. When Sophia is seen at night with Sam wearing a short and hot dress, they are usually suspicious and question her about it. He would definitely question her if he saw sophia dressed like that at night and with Sam. Both Liam and Dylan have the right to question her when Sophia makes a mistake and finds her going the wrong way. Also, Dylan is her son, so he easily questions her on that subject. In real life, wouldn't any son question his mother when he saw his mother dressed in short and hot clothes and be with his friend during the night? And do you think he looks at them like that at the time and doesn't question anything about it?
That twist in the story has already been removed. Dylan has nothing to do with the aiden deal in the story. The answer to that question is that Dylan wants to see his mother in sexy clothes, true, but Sophia only wants to wear sexy clothes in front of him and with him, but he doesn't want to see Sophia in a sexy outfit with his friend or anybody else.