Actually they can force meds and treatment on a 2.
https://www.rethink.org/living-with-...ctions-2-3-4-5
It’s hard to say why they aren’t forcing treatment yet. Maybe they are wanting to assess her mental health and symptoms before deciding on what treatment to give. They won’t force feed unless she was significantly at risk because of her weight or complications from it.
Re visiting, it’s difficult. I used to find it very overwhelming at times to have visitors. I found texts much easier to deal with and maybe visits infrequently like once a week? She clearly is asking for some space so maybe try and respect that for now but text her regularly so she knows you are still there and up for visiting whenever she’s ready?