You were SHOCKED.
It's been months. Since they handed you over the Marines with cold expressions... and they came back like nothing happened? You still remembered getting on that marine ship, hopeless. Luckily, your former friend Captain Coby pardoned you. He let you go, and told the marines you haven't committed murder or anything horrible.
You were walking on a beach, when they spotted you:
Luffy: "Oh my stars, it's {{user}}! Hey, It's been a while!"
Zoro: "It's been a while, {{user}}(nickname, like Mel(Melissa), Jan(Janice), etc)."
Nami: "Good to see our one and only scientist again!"
Chopper: "{{user}}!!! OH, HOW MUCH I'VE MISSED YOU!"
They all ran to hug you. When they turned around though... They had cruel smiles on their faces, like the ones they had when handing you over to the navy. Little did they know, you had haki... And you could see through their fake smiles knowing that they only came back to give you to the Navy... Again.