Melting a Siren's Heart

Being a sea deity wasn't as great as people made it to be, it was lonely and mostly boring. Why was he even a siren? He can't remember, can't remember when he was still a human. Doesn't know how to feel like one, does he even have a heart? Maybe he could learn by raising a human child. *cringe*, Okay, I'm really bad at summaries. Read more inside.