First of all how to n the fuck would anyone know if that guy is an "alpha" or any of the deterministic traits for being an "alpha"? Or does alpha just mean having a larger dick that the other guy? She's into the other cock likely because it's the new one. If you've ever had a threesome with two bitches (one of them your gf or wife) of course you want to fuck the other girl badly.
Balas
Blakkrokk
not clear who she's married to but definitely clear who she prefers