I'm gonna be a party pooper, but sister-in-law probably has depression because/on top of being literally "sold" into marriage and then live in poverty without any weight or power on her name hence her constant crying and not doing anything.
I'm gonna be a party pooper, but sister-in-law probably has depression because/on top of being literally "sold" into marriage and then live in poverty without any weight or power on her name hence her constant crying and not doing anything.