So Granny was trying to get him to buy Meimei? Meh. I think buying both would be better. Even with a broken heart, she'd have enough money to be free from the courtesan business and/or pick up a new trade.
Can someone explain to me what happened and why? Was there any reason the old guy was just told now about his former paramour? Did Mau Mau not want that to happen before or what?