He won’t return my belongings and doesn’t want to see me?

I broke up with my boyfriend two weeks ago and we got into a heated argument last week and two days ago as well. When I asked for him to return my belongings he refused and see he doesn’t want to see me and he doesn’t need to see me anymore. What does this mean and how can I get my stuff back because he has a lot of my valuable belongings with him.
Updates
9 mo
He also blocked me off everything so now I have no way of getting those valuable things back.
Updates
9 mo
And said he doesn’t want to see me*
He won’t return my belongings and doesn’t want to see me?
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