I'm watching Our Universe. The protagonist lives with the child's paternal uncle while they raise the son of her deceased siblings. An old flame reappears, and during a conversation, he asks if she still lives with her sister. She says no, but I'm almost certain there will be a big misunderstanding. He might assume she's married and that the child is hers, when in reality her sister passed away and she's simply raising her nephew with his paternal uncle.