Adam22 is putting Joe Budden on blast for saying his marriage to Lena the Plug was a sham ... and he's doing it by calling out Joe's own past relationships.
We got Adam and Lena outside their No Jumper Store Friday on Melrose, and he says the chatter from Joe is pretty ironic ... and he's got a bold reason why.
ICYMI, Joe claimed on his podcast that Adam's on a downward spiral and is doing a lot to stay relevant, citing letting Lena sleep with different dudes as an example ... he even thought the 2 might just have an arrangement going on.
Adam and Lena say that's far from the truth, and really do a lot of normal things as a couple -- not to mention they have a kid, and freakin' live together, too.
Now, on the less traditional front ... Adam and Lena just wrapped their reality competition show, "For the Love of Lena," which had multiple guys vying to have a threesome with Lena and Adam ... and that unique trophy went to adult film star Lil D.
He was with Adam and Lena on Friday, and we asked him what his favorite part was about winning the competition. Hint: You don't need 2 guesses to figure out his answer.