I did read that Kate Bush actually turned down Gabriel's amorous advances and seduction attempts -- she was happily married at the time-I can't remember where I read this now-probably Q magazine or a Gabriel biography I read a few years back.
Needless to say the only people who'll really know are those involved.
I think it's well documented PG had an eye for the ladies and didn't do too badly apparently Bush being one of the few who escaped...........