What do people with BPD feel at the end of a relationship

Hi,

I was wondering what people with BPD feel when they break up with their partner. My partner got all cold and distant so I guess it was the devaluation stage of our relationship so I had to end it.I just think they didn't care at all- I'm not saying I want anyone to beg but still. I am only asking because I still have feelings but I feel like it was too late anyway after the devaluation it's like you don't matter anymore although people with BPD would deny it?