Reply to MIL doesn’t date, her son told her “not to”

Yes biological father and she has been single for a long time. She is hugely obsessive and lives for any and all attention. She works part time and has friends she sees so that’s good. I’m still wondering if she’s actually holding back dating due to what my husband said. Eventually her other son will move out.. and she could get lonely.. I guess it’s. A Lesson learned. If I was her. I would be like “forget you, I’m dating, son!” Haha