Help an autistic husband out

When I am sitting in the living room, working and listening to the radio or watching TV, my wife will come in, sit down, and play TikTok videos or other things on her phone. Without headphones, and without a care that other people are in the room.

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She tells me that it's normal for people to play things loudly in their own house and she shouldn't need to ask permission, but ... isn't that incredibly rude to override someone else's listening without asking first? If she would just ask "could I listen to videos?" or something, it would be more polite I think.

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Or am I overreacting?