Hi ,
Welcome to the boards! I hope you'll find lots of support and help in navigating your relationship here. Many of the symptoms you provided sound a lot like BPD, but I'm not a professional so I can't say for sure that it's BPD. Whether you get the diagnosis or not really isn't as important as learning how to improve your relationship. Some people never get a diagnosis. My H will not go to a psychologist, but he has almost all of the BPD symptoms.
We have a lot of workshops on the right side of the page that can help you learn a little more about being in a relationship with somoene with BPD. It can be a little overwhelming and scary when you first learn what BPD is. For myself I felt a little hopeless knowing that my H may never be cured, but I also had hope in realizing that I wasn't losing my mind and that there were symptoms beyond normal fights for a married couple.
Here's a link to one of our workshops on the Dos and Don'ts of a BPD Relationship. This might be a good start to discovering more about this disorder:
https://bpdfamily.com/message_board/index.php?topic=62266.0