When I left work in the middle of the day   I didn't tell the boss it was 'cause I couldn't take   This bein' away from you   When I knew you were waitin' somewhere for me      Which you told me on my voice-mail as only you could   Had a couple hours off, might do me some good   And you know that I can't resist   The way that I feel when I think of your kiss      It's blood simple, bone deep   Love's a promise that I mean to keep   Baby, you can hold me to it 'til my last heartbeat      It's blood simple, bone deep   Even when I lay me down to sleep   Don't you know that you're the only thing that matters to me   Heart strong, life long, true blue, blood simple, bone deep      Some things in life you can never understand   And even when you try to describe 'em you can't   Ever say what they really mean   'Cause you always mean more than you can say      That's the way it is every time I look in your eyes   There's something so pure, it completely defies   Any words that I'm thinkin' of   All I can say when it comes to our love      It's blood simple, bone deep   Love's a promise that I mean to keep   Baby, you can hold me to it 'til my last heartbeat      It's blood simple, bone deep   Even when I lay me down to sleep   Don't you know that you're the only thing that matters to me   It's heart strong, life long, true blue, blood simple, bone deep      It's blood simple, bone deep   Even when I lay me down to sleep   Don't you know that you're the only thing that matters to me   It's heart strong, life long, true blue, blood simple   It's heart strong, life long, true blue, blood simple, bone deep