Affiliate Marketing Secrets

Colleagues farewell tonight (of a man I dont particularly like but, do admire in SOME ways – mostly he’s just a pretencious jerk).
Anyway, I organised the event and its close by to work – just a few casual drinks.
Is it bad if I don’t go? being the organiser and all? I REALLY dont want to. I know I should and should just be grown up for contacts and networking etc. but i just realllly loathe this guy. really dont want to waste my night drinking with colleagues. im so sick of it all!! im 25 by the way the guy leaving is about 55 and we are all part of a niche team re vessels and maritime. im so confused as to what to do!!