u/Asleep-Fan-2513

So ive been hurting my best friend without realising and meaning, and like 4 days ago they crashed out and i didnt respond well and then told me not to contact them everywhere nor even thru their friends and blocked me literally everywhere,and said they wanted to end it. we were so close and they might or might not still love me and i want to apologise but i dont know what to do. They sounded overwhelmed and i take full responsibility, i just want to at least end it on good terms. We haven't talked in about 4 days now and i feel guilty. i miss them and i wish if i can make things go back the way they were and realise my mistake way back

what should i do?