Cailín, I've told you over and over. You're not a mermaid. You never were a mermaid. You never will be a mermaid. You have LEGS, for Illamatar's sake!
As for my "unhealthy" obsession with mermaids... it's more a passion than an obsession. And I have the right to a personal life, don't I?
I'd like to add that mermaids and werewolves are completely unalike. Unless you get weremaids...