My boyfriend broke up with me due to depression?

My boyfriend confessed to me (only me) that he doesn’t feel ok, that doesn’t care about anyone or anything and wants to be alone. After that he broke up with me. When I tried to reach out and support him, he changed and became aggresive. He just pushed me away and tried to hurt my feelings. Almost 4 weeks after that day and we have not had any contact. What can I do?

My boyfriend broke up with me due to depression?
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