Oneshot
I don't own anything Hiro Mashima does, or however you spell it.
~ How to be a Heartfilia breaker ~
Rule #1 : Gain her trust
He remembers the first time they talked on a deeper level, it was Galuna island after they had defeated Lyon and his crew. The party left them to be the outsiders, even if Natsu tried his best to drag Lucy into the mix, she wasn't the type to party much. After the vulnerable time together it left her knowing more about him than her, but he didn't mind. So he went a further into his torturous past, even if it meant saying some things that left him in silenced moments as he tried to grasp the right words.
To him, that was when he has truly gained trust for her, and she has trusted him enough to tell him a little of her mother and how she learned to use magic. She trusted him, and he trusted her.
Rule #2 : Protect her during battle
When she was taken from him, he almost lost his mind. Much like Natsu he fought until his breath was harsh and rough. But he would do anything to protect the blonde, so he fought like no other. Even if it meant the destruction of the guild. Natsu however would forever be her saviour.
Rule #3 : Watch her fall apart
Was it just him or was this mage slowly beginning to lose herself? Paranoid and lost, she was gone and then back again. This wasn't normal, what had happen
Rule #4 : Lose her to someone else.
Every time she's in trouble, it's Natsu who saves her. He watched her fall deeper and deeper into the world and happiness that was Natsu Dragneel
Rule #5 : Fall into someone else's arms
Juvia seems nice, maybe it's not love, but he can see himself with her.
Rule #6 : Rewrite this into How to be a Fullbuster breaker
Because in the end you don't end up with the girl, and the one who you do end up with is someone who you wish you could fall for. Because, in the end Lucy will be breaking more hearts than she will have herself. Gray just so happens to be one of them; Natsu is not.