in case, Dave Brennan doesn't come back here (or doesn't refind this thread), here's an approach to what Micho Russell might be singing.

Verse 1 similar to Dave Brennan's verse 1 (but singing: "when Musheen went to Bunnan")

Verse 2: (and I'll skip all my ?? to make it readable)
Twas out then in deep conversation
our language was plain indiscrete
but he was building on a sandy foundation
that soul slipped away from my feet
she found out some drops I was taking
and stay out until dawn
she packed up her boxes quite hasty
and she went for her fling to Bunnan.

Verse 3: similar to verse 4 above

Verse 4: similar to verse 3 above.

Wolfgang