I agree again with U. It reads like you are trying to see if she will react to what you do, and that you may be hoping it will snap her out of it.
The reason she said it seems sudden is because for her - it is. Timelines do not matter here, as I've said before. I've also written to you several times before that there is no logic here. From what you wrote about her reaction, it sounds like she is squarely in that zone. Applying logic to someone who lacks logic will not work.
I would seriously think about what you want to do. If you're having that many doubts about your decision, you may need to do some soul-searching and figure out what it is you really want. I would spend some time discussing it in IC.
Read other posters here. Do a lot of reading. For example, look up DnJ, read the MLC resources top to bottom. I think you will find a lot there that can help you.
Find a way to stop reacting when she reacts. Like U said - detach.