Your photo of the dice coming-up with two aces is funny, though, because if you throw a pair of aces like this at the crap table on the first roll of the dice, "Aces! Line away!" is called, which along with ace-deuce and 12 (6+6) loses, whereas a 7 or 11 wins. Aces loses any bet they have "on the line!" On the other hand, if ya call "Aces!" , you win a large multiple of whatever you bet. Never the TRUE odds, but a very lucky call, indeed. A "7" is rolled six times more frequently than "2". Unless a person has some psychic abilities, calling for one certain number is a big loser in the long run. I called a "5" out of thin air once, at the Fiesta Henderson, and was booted from the casino by the pit boss, so even being a little bit psychic in a casino can work against you!
If you really read the poem, it is about betrayal, the snake eyes in gambling help represent that.
Perhaps I read to much into it, but I specifically picked up on the cheating on his partner and her forgiving him anyway part. Did I misconstrue that HR?