In the space of ten days, the Gunners have now lost four in a row, to Ostersund, Manchester City twice and now Chris Hughton's Seagulls.
A group of Arsenal fans will lobby chief executive Ivan Gazidis this weekend in an attempt to persuade the club to replace Arsene Wenger this summer and announce his departure before the end of the season.
Arsene Wenger avoided giving direct answers to questions regarding his future after Arsenal fell to another damaging defeat, this time at Brighton and Hove Albion.
Arsenal have lost 6 of their last eight games, which included a comprehensive 3-0 defeat to Manchester City in the Carabao Cup final.
It leaves Arsenal nine points behind fifth-placed Chelsea having played a game more and 13 points off Tottenham in fourth.
- Pascal Gross has assisted Glenn Murray four times in the Premier League this season - only Cesar Azpilicueta (six for Alvaro Morata) and Kevin De Bruyne (five for Sergio Aguero) have assisted a player more.
"It was cagey after they got one goal back, they had the better of the second half, but we hung in there".
Wenger said he is focussing on doing his job when asked about stepping away from his post.
Arsenal risk missing out on Champions League competition next season and their only hope of qualifying now lies in winning the Europa League which currently seems pretty unlikely considering their form in recent matches.
"So I do think he will leave at the end of the season but for me I would always feel more comfortable with it being on his own terms".
Defeat to Milan over two legs could see the most hard of situations presented to Wenger, who has also now conceded he had to be "realistic" of the importance the Europa League now holds.
"I don't like to see him under this pressure, but he's had a great run at it and things aren't turning now, they're not going in his favour".