I'm a married man that is a cocksucker. Me and most of the guys I suck off are sucking dick because our wives don't like to suck or fuck anymore. I'm 60 and have decided that sucking cock and eating cum are much more fun than begging for pussy. Man to man sex is easier, hotter and nastier all the things that make good sex. Give me a big fat dick and a hot load of cum over a loose, smelly cunt anyday.
If all you're encountering is loose, smelly cunt that may be your problem, not the cunt's owner.
It sounds to me like you simply enjoy cheating and being sucked off by dudes so you're trying to justify your behavior by putting it off on your wife. I don't respect cheating because it's dishonest behavior, but I can respect a person who is big enough to admit that he is being dishonest, no matter the reasoning. I pray your wife never finds out (especially in the form of getting a disease through no fault of her own).