I think he is flipping crazy, but he might have just said it to see how interested she would be in another man. Kind of a test.. Otherwise it seems very strange. Also he might have thought he would get off watching, but usually those are thoughts best left as thoughts and not actually followed through with.
No most guys would want two girls, not another guy.
Extrmeski, I'm curious to know a guy's point of view with regard to him wanting a three-some with another man. Does that seem peculiar to you? Would you suspect he may be gay or bi or do you, as a heterosexual, understand that or have you known other guys who were heterosexual who would likely be into something like that?
guys are funny creatures especially when it comes to sex. I think he was more angry that you jumped on the chance rather than to be a bit coy about it. Now in his mind you are more into it than he is which he is having trouble with. Also there is a bit of a control issue here as well, since you jumped out like that and advertised it, he feels that you are out of his control. His reaction is partially to bring you back in-line as well.
Anyway that is a guys point of view..
Honestly I think that your guy may be crazy. For him to say one thing, then get so mad at you for what he thought up in the first place. That's not right and you don't deserve to be treated like that. Even if it is for one day and the next day he makes up. He is just trying to have control over you, and he is using his temper to control you. And even if someone he knows ends up seeing the pictures, obviously they are interested in it or they wouldn't have been looking up those types of things. Good luck, and don't let him control you like that.
What the last three said. You can't really think otherwise, can you?