And his argument is I never sent them to him (husband) so I must have liked this other guy more.
It couldn't have been that that guy asked you and he didn't, until recently.
Or that that guy pressured you, and he didn't, until recently.
Or that having been asked to do it once, you discovered you weren't all that comfortable of happy about doing it, and do weren't keen to DJ it again ...until pressured by him.
No, absolutely nothing reasonable like that ...
it can only be that he is second choice and a "cuck" that you got involved with only because the guy you sent the pic to dumped you (which he probably didn't) whereas he was willing to "wife you up".
This smacks of red pill "alpha fucks, beta cucks" philosophy.