If it were me? I wouldn't, just couldn't stay.

All I would be thinking is, that my husband has officially set the tone of the rest of our marriage, for the rest of our lives.

I mean if it were years later into our marriage? Sure I could buy that he was unhappy, bored, even unattracted to me, or whatever his excuse. I would then probably (depending on his reasoning) be willing to do couples counselling and work on repairing the trust that he had broken, to salvage some of what once was between us, and to hopefully build something better, something stronger.

But to start our marriage off on the bitter note of betrayal?

No way, I mean was marrying me so horrid that you had to console yourself by cheating on me before our honeymoon bliss even wears off?
And what exactly are we repairing if it was broken to begin with? What is there to work so hard toward salvaging?

If it were me? Nope, not a snowball's frucking chance in hell. I would leave.

Buuut, that's just my perspective, my hypothetical reasoning here, I'm not presuming to tell you what to do, I don't have to live with the consequences. You do.

I'm really sorry he did this to you, it breaks my heart to hear that one of the most blissful times in your life was ripped from you and tainted with such deep betrayal.

Whatever you decide to do, I sincerely hope it leads to a much happier road, filled with love, loyalty and laughter, because you are worth so much more than this and deserve much better than what you've been handed.