It was Breathe, the song was called "Hands to Heaven". It was on the album "All That Jazz" but I don't know how easily available it is. The song's been on a lot of love song compilations though.
Great track by BREATHE, about a year ago I had a l-o-o-o-n-g chat on the phone with one of the lads from the group. Hands to heaven got to No4 in 1988 although it had been recorded 2 years earlier. Sadly the record company would not release the track they wanted as a follow-up and they never had much success after.