I believe that the momentum is with the Arsenal side, who are five points clear of Manchester City with 12 games remaining. There are some high-profile games to come for Arsenal thereafter, including clashes against Liverpool, Manchester City and Chelsea. Theyre playing in a way that they want to win something this season and the spirit that they showed against Bournemouth certainly bodes well going into the deciding stage of the season.
I actually think the opposite, what is happening with Arsenal at the moment is that there have been a lot of declines, the dramatic win against Bournemouth was indeed very surprising which proves that the mentality of the Arsenal team is very good but I see it from another perspective, in my opinion there has been a decline in Arsenal's performance so it is difficult for them to win games and that has been the case in recent weeks.
Arsenal are not as strong as they used to be and at this time won the match very difficult, and in the rest of the matches this season Arenal has many obstacles when facing the top Premier League teams.