You can find better

Why are you still with him? (Not to sound harsh but honest) Obviously you aren't making him happy enough.. Go find better!!

Sorry OP, I sense you care for him but if he is thinking this way your future with him will be nothing but heartache... move on. This is your life to live, don't let anyone rob you of your happiness!

Don't know why you'd want someone like that. Think about it, he wants to be with more than just you, he'll probably just cheat anyway.

Who the HELL wants to have an open relationship? It's the most meaningless, time-wasting, commitment-avoiding type of relationship there is. The point is to have feeling for each other, not feel everybody else.

If you can't kiss people, he can't kiss people. Call him out on not treating you as he should.

dump him

Been there, done that and it sucked! So don't agree with him unless you want an open relationship also. Polyamory doesn't work unless both of you are in on it. If he's not going to shut up about it, I'd find a new partner. Double standards don't work and you'll end up miserable and resenting him. Leave him and see how fast he changes his mind, or it can be like another story I read when a guy pressured his gf into it and she ended up getting more guys than he did girls (he basically got none) and he hated it and wanted to reverse his choice - your partner clearly doesn't realize what an open relationship is really like.

So what you're saying is, he's already cheating, but he wants you to be ok with it

Yeaaah... No. That's just him whoring around.