Mamma Mia- the final verdict ( and who is the dad?)

Folks - the scenery just isn't enough. I watched up to Dancing Queen and completely lost the will to live.
Call me serious/ kill joy/ misery/ scrooge but I just hated it. Every minute. And I think I have sussed out why - the singing is so totally awful. It spoils the original songs. Howls of outrage perhaps- but there is only so much cringe-ing a girl can do.
So- it is deleted. It has been erased from Sky Plus, and I can move on. So tell me- who was the dad or did he drown himself in despair before it was revealed?