The victory put us level on points with the Gunners, and we're just three points behind Women's Super League leaders Chelsea, with a game in hand.
But more than that, the 3-2 success in north London is an important psychological milestone, with the Reds coming from behind to defeat one of the WSL's 'big three'.
“I think we had this block against the traditional top three,” says Henry, who is part of the Manchester United Women Supporters' Club and also sits on the club's Fans' Forum.
“Obviously we have our aspirations to break into that. We came in off the back of the Chelsea game, where silly errors cost us [in a 3-1 loss].