The next time Aquarius stared down through the pool she witnessed Lucy's flame-brained partner. He was as dense as she was. Why else would Aquarius tease Lucy about getting a boyfriend? It was obvious the blonde held special feelings for the pink - haired (no, not salmon) idiot. He was meant to be her boyfriend. She heard tales from Leo, Capricorn, Virgo and the other spirits about them. Not to mention his blue - furred exceed partner. She always liked the colour blue no matter what shade yet on him it was sickening. Aquarius never did understand why Lucy loved him but she realised that if Lucy was happy, she was happy. Aquarius knew he wasn't that bad, he started his own team for crying out loud (He did name it after himself but details shmetails) and he has saved Lucy countless of times.
Besides, if that ash - for - brains ever hurt Lucy, whether emotionally or physically, she would break out of this confinement and STAB him to death. It was only right. She would always be watching but this time, she would be Watching Natsu . . . The Salamander.