Earlier quoted context omitted.
Well, prostitution is physically sexual. So it's more like someone who gets addicted to camgirls. However those situations are mutually honest transactions. In this case she's being deceived and lacks the strength of character or mental stability to fully realize that or cope with it. I do agree that she's probably starved for affection. Frankly, an escort or camgirl habit could be cheaper.
> I do agree that she's probably starved for affection. This. And I suspect she's paying for the appearance of being treated seriously and having her emotions treated seriously, which OP clearly fails to deliver by arguing that she's wrong. I don't have many constructive ideas what to do, but don't repeat things that have never worked in the past and pay attention to her needs, not yours, might be a good starting poi…
You have no idea what the situation is. This isn't some old lady we stuffed in an apartment and ignored on the other side of the city. My wife talks to her every day and we see her in person 4-5 times a week. She comes over for dinner every single weekend. She was treated seriously, right up until the point that she lost her life savings and started laundering money.