Fact: This is probably as hard for him as it is for you, if not harder.

Now, what exactly are expecting to get out of this "discussion?" Can you pinpoint it? What could he possibly say at this point that would ease your mind for the rest of your life (or even your week?)

If those questions made you think, or come up with some impossible answer, maybe you should consider a different approach.

If you have, as you say, "chosen" to stay with him, then you have also chosen to trust him. So, live up to it! Instead of confronting him about it, be his support. Be strong, and silent. Wait for him to come to you. Tell him you trust him and that you are proud of his being responsible about this.

You do deserve some reassurance, but maybe he needs it more than you do at this point. Don't underestimate the pain of guilt, it can even outweigh jealousy and doubt in some situations.

I hope you can make an attempt to be supportive and mature here. Have some faith. If you show him love, it may just come back to you.

Peace.