The real odd's are basically zero, when you consider the shear magnitude of what kind of relationship this is and factor in the stark difference in male and female mating evolution.
Females DESPISE weak men, you could be quite literally the Greek god Zues and one day stub your toe and boom, you're now an inferior pussy and not a "real man" to her anymore. Yes, it's actually that insane, one tiny mistake, the slightest sign of weakness in any way and she is done with you as a mate. Now it's the common public perception that cuckolds are "beta bitch boys" which is delusional and retarded and not even close to accurate, so mentioning that you are one means she is out the door because you are now in the "loser" category in her mind.
With women EVERYTHING revolves around how she feels, you could be the richest man on earth, fly her to France for the most romantic vacation ever imagined, and if she wakes up the next day and "feels" like you're not doing enough for her then you are now in the "loser" category in her mind again. Now you not only have lost you godlike power because you stubbed your toe, but you also picked roses that were two shades darker than she likes, and you're a cuck also....
Look at Brad Pitt, seriously that dude has everything and Jolie at her age still thought she could do better than Brad Fucking Pitt!!
It get's even worse because 99% of men on the planet have no chance of EVER becoming a Brad Pitt, we have normal lives and normal jobs, and park our normal cars in the driveway of our normal houses which just isn't enough to even get a passing glance from some homeless 50+ fat feminist cow with a an addictive white substance addiction and 27 personality disorders. That is who you, as a normal guy, get to choose from. The delusional old used up divorced women who threw away their relationships so they could fuck the bartender in an alley because lying about fucking some random jackass was so much better than just being honest with their partner and making it part of the relationship.
The fact is women cuckold every man they date or marry, ALL OF THEM do it, and all of them lie about it and claim it was a "mistake" or that "it just happened" when they get caught and it destroys any credibility they have and obliterates any trust that exists with the man they cheated on.
It's fucked up, but that is the bitter truth, so like all the rest of us who are open to it, and looking, you will not find her anytime soon and most likely never will because even IF you find someone who has the potential, they will always claim they are a "good Christian girl" that isn't into such sick and twisted perversions, while she is lying to you about fucking her dope dealer ex boyfriend who she is planning to move in with next week.