another question about song from ep 104

please does anyone know the name of the song that is played near the end of the fourth episode when rob lowe (Billy) walks down the darkened hallway to his office after the poker tournament. Alice isn’t there; she’s taken a plane to Tahoe. Billy stands alone, looking at the floor, as the haunting lyric plays, “so you lost . . .”. please help me. i have been trying to track down the name of this song for ages. time is of the essence people so, i plead with ye, respond quickly and put an end to my mental anguish!!