Prim is important to him too. His relationship with Prim isn't dependent on whether he's mad at Katniss or not. He's not gonna let Prim starve and die just because Katniss does something he doesn't like or agree with.I love Gale!
Katniss got strangled by Peeta in Mocking jay. Tris got stabbed in the ear by Four in DIvergent and Clary got attacked and knocked out by Jace in City of Fallen Angels.<--- and some more books in the mortal instruments