Proper Cuckold Protocol?

Our days at the SW hideaway are dwindling. We head home on Saturday morning, and will have a very difficult time breaking from our routine of two a day sex, lots of exercise, plenty of sun, beautiful sunsets and evenings filled with  friends and live music.

But something came up last night which raised an interesting issue of proper cuckold protocol. Maybe some of our lurking readers can help, so please come out of the weeds if you have an answer.

I mentioned last week that on the 4th of July, we met a local business owner, and then re-encountered him later that day. Mistress commented that he seemed to be flirting with her, and I had to agree.  She seemed pretty intrigued and enjoyed the attention.

Last night we went to a neighborhood restaurant, where a favorite performer was doing his Piano (and guitar) Man thing out on the lovely patio, where a large crowd was dining, drinking and dancing under the stars.

We found seats at the outdoor bar, close to the music. As more listeners filtered in, low and be hold Mr. 4th of July Flirt, saunters in solo. At first it wasn't clear he noticed us at the bar. He worked the room a bit, chatting with friends. draping his arm around women he knew. Clearly a "local".  At some point he sat with friends at a table only a few feet from where we were sitting at the bar.

At about this point Slave elected to go to the men's room. When I returned, I took a gander and across the room and discovered Mr. 4th of July Flirt chatting up Mistress at the bar, in the typical flirtatious style we have all seen. He was leaning against the bar next to her, and they both had that animated look that sends a certain message of mutual attraction.

So what does a good Slave/Cuck do under those circumstances? Mistress had laid out no clear directions for such occasions, and we were with two friends who might think it odd if I just disappeared for the night. I decided to give the two some time together, so worked the room a little myself, chatting with friends at two other tables for about 10 minutes. By then I figured it would seem a little odd if I just stayed away. So I returned to my spouse, taking my seat next to her.  Mr. Flirt greeted me with no clear surprise that Mistress had her boring husband along.  We talked a bit and then he drifted back to his own table.  Slave felt a little guilty about killing this budding flirtation.

Afterwards, Mistress confirmed the obvious.

"He asked me if my husband was here.... when I said yes, he said, it was a shame, because otherwise he would have tried to 'pick me up."

"So what did you say, Mistress?"

"I just laughed, Slave....."

"Well you could have said your husband was immaterial to the issue."

"That's a little awkward, Slave...."

Well, I suppose it is.  He did say he was going to email her about something they had been discussing. So it's possible that can provide an avenue to add some fuel to sustain this flirtation. But my question is this:

What does a good slave/cuck do in this situation?

-Return to his wife and take his place next to her, killing the flirtatious mood?

- Or get lost?