Getting over a breakup with BPD

My boyfriend of 1.5 years broke up with me last week (right around my bday/valentines so great timing right) and since then I've been struggling to cope with it. My fear of abandonment has gotten much worse now, and the worst part is he was my bpd's favourite person (basically someone we get attached to and our emotions end up mirroring them). Not sure how to move on with anything. School and work are so difficult and it feels like I lost a part of me. Doesn't help that there was no good reason for the breakup. He claimed he "was no longer ready for a relationship" after almost 2 years. I had been imagining the rest of my life with him, and my future now seems so uncertain. Anyone else feel like this?