OMG, yes. How massively confusing.

I am not even sure what to say accept that I am so very sorry.
The kissing remark, I am sorry what a low blow. That's I dunno, how immature.
The rest of it.... I have no idea, what does he want. An open relationship? How can you keep the marriage and work on it, and date other people and have other relationships with other women all at the same time

. It doesn't make any sense. He sounds extremely confused. And yes selfish. Sorry, but that is horribly selfish, and amazing timing, all things considered.
I would also kick him to the curb. If it were me. I have a very low tolerance for this kind of stuff, because I do not ever give out this kind of "love", I won't accept this back. You don't deserve this kind of crap either BNLsMOM, I am so sorry.
He really needs to figure out what the heck is doing, and what he wants. But I think now would be a very good time for you to do the same. No matter what he decides, what do you want? You have to put yourself first now.
Please take care of yourself, I know you are having such a hard time right now.

I am very sorry, I think I don't have words right now to express how I feel for you. But sometimes the men we love, just are not worth it.

I am trying to bite my tongue a bit, I would love to give him a piece of my mind.