I hate Eastleigh as much as Pompey, trust me.
I am proud to say the last time I stepped foot in Portsmouth was when i was 12, Southampton Rep team beat Pompey Rep team 2-0, and how sweet that was, even at that age. Infact, it was those kind of games that really engraved my dislike for them. I will not go anywhere near the city for anything these days, would rather spend my money around here, and when my mates fancy a night out in Portsmouth, I stay at home. I won't even do my Masters at their University, not just for the fact they are a crap ex poly.
Irrational, yes, stupid, yes, immature of course, but it's just the way it is.