gajeel is the silent tough guy who brings out your cute flirty personality and then there's a Natsu a cute,oblivious, and brings out the tsudendere (tough guy) you.
Fairy tail has always been about protecting your family with your life. Natsu Dragneel is thrusted into a situation that he isn't prepared for and will have to make a choice. Defend Fairy tail? Or defend the one he loves.