Could an unstable relationship have triggered my bipolar?

I recently left my 4 year relationship due to too much trauma (emotional) there was so many ups and downs all the time triggered from my partner constantly blowing up on me. I got diagnosed as Bipolar 2 about 1 year into my relationship after constant depression spells (which I used to think was just clinical depression) the following year or 2 after the diagnosis I still felt relatively stable but currently I am on a rollercoaster of emotions just reflecting, I don’t remember being this unstable prior to experiencing this relationship now my brain feels so so different

I guess what I am feeling or thinking is if this relationship being so emotionally unstable for me either exacerbated the symptoms or triggered the disorder