MN has never let me down when I can't place a song before and this one is really bugging me.
Acoustic, quite slow, the only lines I can recall that are in my head this morning are 'I think about you all the time/If only they knew who I was talking to'
Fairly sure I just came across it on a Spotify station rather than the radio or an advert which makes it much harder to date/narrow down who it might have been!