I want to ask if I was unreasonable for allowing the way DH encouraged her to move out, but that's probably an unreasonable thing to ask. I felt sometimes like he was almost manipulating her. So it was her choice, but she was very hesitant to make that choice.
Living with her was awful. It wasn't good for my younger children, so I know it was the best choice for the rest of us. But I doubt it was the best choice for her. I've had this surge of anxiety since she moved out and even started therapy. It's possible I'm codependent. Why else would I worry about her when I should be sleeping?
Regardless, yesterday I went over her home and she said she would still live with me if I had given her that option. In therapy I was asked if she chose to leave or I made her leave and I truthfully didn't know the answer, but I suppose now I do. I made her leave because she felt she had no option to stay. Now I'm still distracted from everything I do because I'm nervous and worried for her, but I also feel deep guilt for making her fly before she was ready to leave the nest.