Why does a boy blocks a girl when he's angry on her?

He expressed me his love. He thought I'm rejecting him due to a misunderstanding. He blocked me right away. I really wanted to accept his love. He didn't knew that. I tried messaging him through other social media but I didn't say him that I'm accepting his love and he again got angry on me and blocked me there too. Now he made me unable to contact him everywhere. If I don't clear him the misunderstanding now and don't say him my feelings, I'll lose him permanently. What should I do in this situation?

He confessed me his love after loving me for 6 years and blocked me everywhere due to a simple misunderstanding. Should I dump him and accept a different guy? Or should I text him by another number by explaining my feelings to him and asking for another opportunity from him?

Why does a boy blocks a girl when he's angry on her?
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