iced -“Shulchan Aruch does not differentiate between yichud with a unmarried woman than yichud with a married woman. And yichud with a married woman is significantly worse. It is forbidden to have yichud with a married woman even if the husband is in town.”
Do you know who the words “Shulchan Aruch” is refering too? It’s the Mechaber or the Rema, not other Achronim. And the Mechaber does differentiate between husband in town or not. While there are Achronim who say this doesn’t always apply – they aren’t the “Shulchan Aruch”.
Before you use an opposite gender therapist a Shaila should be asked. To outright say it’s Ossur is ludicrous.