Percabeth Honeymoon: The Sea Battle

Annabeth's POV:

The past few days were weird. Percy's been in a very bad mood. He never laugh, never talk more than a minute, never smile. I felt terrible. What on earth is going on? It's been 3 days since he saw the sea girl. If something important is up, he should've told me by now. Seeing Percy like this makes my heart broke. Piper still haven't find anything interesting, neither do i.

"Hey, let's go to have dinner at the beach," Percy says without looking at me.
"Ok sure." I said back.

Percy got us a private beach table beside the water, it's very beautiful with the sunset and the waves and everything. I could feel the wind blowing to my hair. Everything is perfect, very romantic, except Percy's mood. He didn't even smile or look at me.
Percy suddenly stood up while eating his spaghetti, "I...uh...i'm gonna go for a walk." He said as he look around the beach.
"I'll come with you," I said as i wiped my mouth.
"Uh...no it's okay, i'll be back soon." He headed off to the waves.
I sat there, waiting impatiently.
Finally, i can't stand it anymore, i have to look for Percy. I headed to the waves, scanning the beach to look for Percy. Then i saw a boy on the waves, that must be him. I walked closer, try to get a better view. Then there he was. Another girl, the sea girl standing in front of Percy, beautiful as usual. The girl put her left hand on his cheek. I WAS SO MADDDDD, i wanted to run and smack her SO BADLY, but i told myself not to. I kneel behind a bench so they won't notice me. The girl said something to Percy. Percy was staring at the girl's eyes the whole entire time. He grabbed her hand. WHAT?!?! i told myself to calm down. The girl disappeared, leaving Percy on the waves. Finally i decided to walk up to Percy and ask him what's going on.
"Percy, who is she? Tell me what's wrong?" I asked, without any emotion.
"It's nothing." He replied without looking me in the eye.
"PERCY! That's not nothing! You've been upset for 3 days already! WHAT'S WRONG? Tell me, i'll understand." I said.
"I'm tired, i'm gonna go to sleep." He walked away from me.
I had tears running down my cheeks, i don't know what to do, i don't know what's wrong with Percy, i'm lost.

Notes

this is heart breaking :'( But it's necessary, this is what makes the story good
please comment and let me know what you guys think, thankssss :D