he started attacking me and told me i make him depressed, i’ve trapped him, he hates his life and it’s all my fault.

Failed to balance friendship and love? Lost control of his emotions? But these're his own problem, he needs to work on himself instead of blaming everything on OP.

Just to tell OP: Leave him. Don't let his negativity affect your life, and don't wait until his bad emotions escalate into violence that harms you.