You can't please everyone, and sometimes, you just have to settle for pleasing yourself. Matt is forced to accept this when he has to defend the life he realized he doesn't want to live without. The life that has been so carefully laid out for him for the last 17 years is changing, and Matt decides that it must be changing for the better if it includes Jacob, even if along with Jacob comes some hard decisions and some fights he didn't know he was quite ready to fight.