Boyfriend is depressed and told me to leave him for sometime?

Asked by yada (20) January 21st, 2018 from iPhone

My boyfriend of 3 years has shut me out completely . His only email was to apologise that’s depressed and asked me to leave him for some time.

I’m totally in the dark and have took step back – now I don’t no what to do.

What does he mean leave me for some time mean ??