The part over a screaming match, right after he texted you? I, don't think, I'd be able to handle screaming matches in any relationship. Sure, you are from a passionate background, but there's being passionate and there's what it sounds like is going on in your relationship.

You called to tell him you OD'd, glad you were OK and out by the next day. That can be construed as manipulative. And perhaps, why he's taking his space.

Sounds like things, moved really, really quickly, in the relationship. The more you try to contact him, before he's ready, the less well it will reflect on your future.

Hope you are able to sort through, what brought you to this point, to fix it, and move forward.