That is mad - I wouldn't have thought of Dublin as a party city at all - and I live there
Would Cork or Belfast or Galway be more your thing? Cork airport is served by Aer Lingus, RyanAir & Jet2.com Galway would probably be served by arrivals to Shannon Airport and Aer Lingus and RyanAir would be your airlines there. Belfast International Airport - EasyJet flys out of London Southend if that is of any use to you Belfast (George Best Airport) - FlyBe and Aer Lingus would probably be your airlines then.
Ireland has so much to offer - genuinely. Its not all Temple Bar and hen/stag nights. There is loads to do, oodles to see, places to go and you would have a great time.