Why isn’t he interested?

There’s a guy I know from a group chat. Never met him in person. He’s straight. He knows I’m bi curious and knows being a cuck turns me on. I’ve sent him a multitude amount of pics of my wife naked and he’s even sent me his hard dick and a cum shot. This morning I wanted to get off to him being aggressive but he only wanted her tits and declined anything else? (He got a new phone and lost all his old ones of her) is he just not interested anymore? He’s told me he’d fuck her before. I even “accidentally” sent him her pussy which he loved but maybe because he knows I like it instead of me submitting to him he’s not interested? Ugh.