gaining the trust of a partner after I have self harmed

I self harmed 7 motnhs ago quite bad. My partner is fearful of me and frightened "of consequences". How do I gain his trust again? I have only done it 5 times in my life, at points of extreme distress, fear of loss. I'm an idiot but I do love him and want to reassure him I do other things now instead. I run and love to run, I take time out, I respect his need for alone time and don't demand he talks.