Hi Minuet,
Welcome to our family
I'm glad you've found us, this is a safe place to talk. (our stories are surprisingly similar and would be hard to tell apart because we are anonymous)
I'm sorry you are having such a tough time since moving in with your fiance, what a shock after years of long distance dating, to find out he isn't who you thought he is. As hard as it is, I think it is good that you are finding out these things now before marriage. You have choices. There is a lot in between being married for life and packing up an leaving today.
You can stay as you are.
You can choose to proceed and get married.
You can hang out with us an learn about BPD, about tools that can help and contniue to work on your relationship.
You can decide this wasn't what you expected and move on, and we can help you talk that through too.
Here is a link that might help in the short term... Do's & Dont's in a BPD Relationship...
https://bpdfamily.com/message_board/index.php?topic=62266.0What is your gut telling you, you should do? How are your kids doing? How old are they?
I hope you will share more when you can.
Hang in there,
Panda39