Rawlins,
Grant you a lot of unrequited lovers either turn to death or drink, however there are a few I can think of that refrain from either. I Live Not Where I Love doesn't mention booze or demise (I think), but then again I think this is an English tune (OPEN TARGET READY). The Spanish Lady deffinately doesn't allude to either.
Then again there's the good old work ethic likes the Boys of Killybegs (Unlike Donegal Danny).
To finish with a couple of questions - if in an Irish pub what on earth were you doing drinking cider?
Secondly, if you and your companion were feeling the worse for wear (I often am so I speak with the voice of experience), I would have picked on a easier subject, i.e. Country & Western, which can be put into one category, SH*TE.
All the best, keep on listening to true music,
Mick