Anxiety & Relationships

Hi, I am 22 years old and was diagnosed with social anxiety and depression at the age of 14/15. I was bullied for quite a long time and that is what had caused it. So im very insecure about myself for it. So getting to my point. I have/had (we're taking a break, i guess) a boyfriend. our 1 year anniversary is gonna be literally next month. September 16. I found out on tuesday that one of my friends at work had passed away in her sleep. It caused me to have anxiety and be very sad for 3 days. I dont know what had happened but it had triggered something much more for me. My boyfriend has no idea how to deal with someone who has anxiety or when an anxiety attack happens. Me? i went to therapy and a breathing class for it, so its easier for me. Whenever I have an anxiety attack, he gets fustrated and tells me to knock it off. he has gotten to the point where we are taking a break cause he feels like he needs to take care of me and its fustrating. I dont know what to do or how to handle all this. help?