I have this sense about married people.
They are envious of my situation, your situation, that is, singledom.
there are many married people who envy the single lifestyle.
Sometimes because it makes them question their own relationships when they know and see someone who is single
One of my favourite photos was taken at a party. I was the only single person, but I hadn't thought about it. After taking pics of all the couples. A friend pointed the camera at me and I smiled. Then he lowered the camera, looked over at his companion and asked her to stand with me so that I didn't look so alone!!! I was quite astounded, not having felt "alone" at all. I looked at the counter behind me, and reached for a "companion" of my own. I have a great pic of me and my spoon. It was the first time I realized how uncomfortable many couples are with single people who are not desperately trying to become a 'couple' again.
Acquaintances do like to ask "when am I going to get married again" etc... When I respond that I am not really sure I could live like that again. The fairly smug reply tends to be "oh, it's just because you have not met the 'right one' yet"