WHY oc x mermaid reader

I feel myself fall into the salty water with a big splash I try to move myself up towards the surface ,but my limbs won't react WHY? I see someone staring at me from the surface I try to call out to them only to get my mouth and lungs full of Salty Water i then notice them smirking as they see me sink deeper into the deep blue sea WHY?
My eyes sting
My throat hurts
Everything hurts
WHY did it have to end like this WHY?

This is an OC x reader enjoy ^_^