the 0 and +0.5 on each side are worth virtually nothing in NFL because ties are very rare
so basically all you have working for you is if either team wins by exactly one. The generally accepted number for a game to land 1 is about 2%.
Lets say you bet 1350 to win 1000 on A and 1000 to win 1000 on B. There are 4 outcomes:
2% of the time team A wins exactly by 1 you win one bet and push the other, winning $1000
2% of the time team BV wins by exactly 1, you win both bets +2000
48% of the time team A wins by more than one, you split, no gain or loss
48% of the time team B wins by more than one, you lose $350
so do the math:
(.02)*1000 + (.02)*2000 + (.48)*0 + (.48)*(-350)
this = -108
so your expectation when making the wagers above (1000/1350 and 1000/1000) is to lose about $108 dollars (on average) each time