Betting on your favorite team's games is always a problem, as sympathy distorts the real picture. I also predicted that Arsenal would win (although I support United), but I could not predict that United would not score a single goal. Perhaps this was a mistake, since Arsenal are good in defense and if they score first, it is very difficult to come equalise.
A bad start (in terms of points) is a good opportunity in terms of betting, I think a cash bet on United to win against Fulham and Burnley is justified.