Insecure?

My wife and I admired a painting in an art gallery, regretted it already had a red dot next to it. The price was very reasonable and we both liked it a lot, but it was sold. We still discussed it when two men came up and remained standing in front of it too. They were both about our age, very grey, but both were very slim.
My wife could not help whispering to me: "Do you think they have been ballet dancers or such too? I would dare to bet that they are gay. They are great looking guys."
I nodded.

"You're not from around here, I think. Am I right?" My wife had to find out, of course curiosity won.
"No, you heard that very well. We're from Dallas, Texas. Had a great holiday on your lovely island, but we have to fly back tomorrow", the slimmest of the two answered.
"But you are not from here either", he added, pointing at me. (Even after years in the UK, I can't conceal my Dutch origins.)
I admitted that I was from the Netherlands and he was delighted, had been in Amsterdam twice in the seventies. And I could add to our connection that I had visited Texas, had been in Dallas once.

It resulted in a nice conversation between us, while the other man first listened to what we were talking about, later seemed to get bored and eventually started to look like he was irritated.
It was not my problem.
The slim guy and I went on a bit longer until the other man said: "We should go; we don't want to miss the ferry, don't we?"
"You are right. Of course you are right!", was the reaction with a big smile.

He patted me on my shoulder, shook hands with me and said goodbye: "It has been very nice talking to you." I agreed on this, I had the same feeling and wished him a safe journey home. He thanked me and followed his partner.
My wife asked me if I had observed the other guy. He had been really irritated.
We both thought he showed a bit that he had a controlling character, was very insecure in this relationship. If you are already feeling like this when your partner talks to a straight man, how will it be when he gets in contact with a nice gay person? Not exactly a guarantee for a long life together.
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