Welcome to the Forum.  As you probably know, clients on this site are not permitted to request who responds to their questions.  All questions regarding herpes go to Ms. Warren and Dr. Handsfield and I split all other questions.  As it happened, today I happened to pick up your question.  As an FYI, having worked closely for more than 35 years, Dr. Handsfield and I never disagree on the content of our replies although our verbal styles vary.  I will be addressing this question.

Before I answer your specific questions, let me point out that most one-night stands are low risk for acquisition of any STI.  Most people do not have STIs and when they have STIs, most exposures do not lead to infection.  Now, on to your questions:

1.  You are correct, a proportion of most STIs do clear spontaneously without treatment. This is not all that common however.  Further there is no information to prove that if you did clear infection you would not get it back if re-exposed to an infected partner.   Following treatment in which an infected partner is treated but does not inform their partner, so-called "Ping-Pong" infections are relatively common.   The scenario you describe in which you were infected, cleared thi infection after passing it to your regular partner and then managed to not get re-infected following multiple exposures to your regular partner is most unlikely and not something I would worry about, particularly after 18 symptom free months. 

2.  Your circumcision status might make symptoms slightly less likely to be noticed but not much.  For gonorrhea in particular the symptoms are typically quite obvious.

3.  Considering all of the information I have mentioned above, I do not think you need to notify your ex of your mis-step while you were going out.

I hope these comments are helpful to you.  EWH

1.  These sort of "what if" questions serve little purpose.  There is little chance that you were infected at all, much less infected, cured it yourself with therapy and then caught the infection back.  Not sure why you continue to perseverate on this.

22.  No change in my assessment or advice, you need to stop worrying about this.  EWH

1.  I believe you have mis-read Dr. Handsfield's earlier comments.  I suppose that over time, before antibiotics were available, ultimately most persons with gonorrhea would clear their infections but I can assure you that Dr. Handsfield did not intend to state that STIs such as gonorrhea and chlamydia frequently clear in the manner you describe and "bounce" back and forth between infected persons who take turns clearing, then being re-infected by their partners.   Further, that such might have happened to you is just not a realistic possibility.  You need to stop worrying about this and move on.

2.  I think you are either being argumentative, paranoid or both.  No change in my assessment.  Remember, you do not know that you were infected and I would guess the probability that your were ever infected is very, very low -- less than 1%.  As I explained earlier, the chance that your were infected, that you did not develop symptoms, and that you cleared the infection or that your prior partner remained infected are simply not at all likely.

3.  Increased numbers of exposures would increase your chance of infection but that still does not make it likely that your partner had an STI.

As I said before, you should not be worrying- my advice is to enjoy your honeymoon, not spend it worrying about your ex.

As you probably know, our Forum guidelines permit a total of up to three responses to questions.  As a result, this will be my final reply.  I urge you to not worry about this matter further and move on and focus on your honeymoon.  EWH