Arsenal have given up a Premier League lead in the past but I think we are a different team and are the most consistent. People keep saying that Manchester City will catch up and over take Arsenal but they are the most inconsistent they have been for many years and I think it is unfair to call Arsenal not worthy of winning the Premier League. I think Arsenal will prove in the next couple of games that they are the champions and Manchester City will lose more points and prove they are more inconsistent.
People who expect Arsenal to give up are Man City fans. 
There is no way that Arsenal will give up, especially after they are eliminated from Europa League. Now they focus on EPL matches only. So, I assume the chance for Arsenal to maintain their good performance will be higher.