A bit more context:
Two years ago she went to her mother's place under the same circumstances. Though back then I didn't want a separation. She was supposed to come back after the weekend, but she didn't return and then entered a downward spiral. Two months later, she was suicidal and had an extreme level of anxiety never seen before. She wouldn't get out of her room and wouldn't allow me to see her, so I had to use sleep masks to get closer. Her parents had put her on a psychiatrist, who prescribed an SSRI antidepressant, and a family psychologist. I knew it would not work, though, because the reason for that was the food.
She has an issue with gluten that affects her mood, so we don't have gluten-containing foods. It's a severe non-celiac gluten sensitivity, which shows up from symptoms but hardly shows up in blood exams. Unfortunately, her food compulsions and her "I don't like to be controlled" type of attitude didn't allow her to accept this fact, so every time she was mad and got some money, she would consume gluten again. And she would tell her family that she didn't have any problem. So there they did not stop cooking with gluten-containing ingredients and buying bread.
It was tough to bring her back because her specific phobia (this is an anxiety disorder) had worsened to an extreme level. So she thought her condition would make it impossible for me to have her here. Because of that, she went back and forth a couple of times. But I finally reassured her enough and brought her back for good. I used a sleep mask for almost one month, including during my sleep. I was cooking for her and treating her as a disabled person. Then I rented a wheelchair, a few months later bought an electric scooter, and today she walks on crutches. This is all because of a traumatic experience she had with sexual assault many months before meeting me, but her extreme anxiety made her specific phobia way worse. Last year, EMDR helped a bit, but it was not intensive because she was pregnant, so now it should be more intensive and therefore more helpful for her.
Over the last few weeks, she consumed filled cookies twice and got a severe headache, and the last time also reported an intense desire to kill herself the next day after eating the cookies. I'm hoping that she will finally accept her food sensitivity, so before she leaves I'll do another final test with a plate of regular macaroni. But this time I'll videotape it, because she forgot about the last test that we did almost two years ago. I need her to be fully aware of it for her own safety.
So the plan is for her to leave while being invited to come back sometimes for a couple of days in case she has conflict with her mother. I'm guessing her mother will get super attached to having her grandchildren nearby, so she will make her best effort to avoid my wife getting frustrated and leaving.



but yeah, there's always those doubts, especially with the way people with BPD just move on like nothing happened and 'seem' happy. It makes you think, 'damn, was I really that bad and crazy? they were right and are doing way better while I'm here crushed'.