In the Dexter episode “Lost Boys” in one of the scenes where Trinity is in the bunker with the kidnapped boy, a song plays. It’s not the one from the record he plays (Frankie Avalon)- this is a female voice, although it also sounds old, maybe from the 50s. Lyrics I could make out are something like this:
don’t you know i love you baby
can’t you see my heart is true
whisper in my ear tell me all …i’m dying to hear
darling i’m so in love with you
The song has a somewhat old country flavor to it, like Patsy Cline era.
I think the OP nailed the lyrics aside from there being at least one “tell me, tell me” that I thought I heard. Since the lyrics aren’t googleable, it makes me wonder if the song is either really obscure or even just made for the show.
I just thought of something. Unfortunately I don’t have the episode anymore, but if anyone still has access to it on their tivo…closed captioning often will identify the name of a song. Anyone willing and able to try that?