Has anyone else helped a mate 'out' a cheating gf?

[Potteruk]

Hey UK here ( so most of my situation experiences are UK or Mediterranean resort based)

I had a situation when me and mates were 19 and holidaying abroad ( as was our right of passage then).
A friend of one mate had a gf who was working for a season as a holiday rep ( can't recall where, probably Majorca)
Well anyway, long story ( which I can tell when enough time after work), but we helped him discover she was a serial cheat....and had fun at the same time

I was wondering if anyone would like to know more or indeed, has had similar experiences and want to share with us here?

Thanks anyway

[nectcouple]

If you're willing to write it out, we are certainly willing to read it!
Personally, I have never been in that situation.