My sister is ruining her kid. She's depressed, that doesn't mean she can abandon all parenting responsibilities. She's super-articulate in public, and stays in bed all of the time in private except for when she sees her boyfriend. He's a great kid, and she is screwing him up. I am so angry. She needs to look after him, or let someone else do it while she gets some help.
help your sister, she and your nephew really seem to need you
Maybe you should talk to her and tell her to get help while you help her out or look for someone else to get help with her son