I think 'It ended on an oily stage' means it ended with him slipping up and making a fool of himself in front of a lot of people
and i think
'He found God
In a parking lot
And you did not'
and
'He found God
In a Wiltshire field
Whilst you did not' - He is saying he had sex with her in these places and it meant a lot to him, he was in love, he found God so to speak, but to her it meant nothing, it was just a quick fumble.
thats why it ends with him making a fool of himself... he declares his love for her and she tells him what it meant to her....nothing
here's how I see it
I think 'It ended on an oily stage' means it ended with him slipping up and making a fool of himself in front of a lot of people
and i think 'He found God In a parking lot And you did not' and 'He found God In a Wiltshire field Whilst you did not' - He is saying he had sex with her in these places and it meant a lot to him, he was in love, he found God so to speak, but to her it meant nothing, it was just a quick fumble. thats why it ends with him making a fool of himself... he declares his love for her and she tells him what it meant to her....nothing
harsh