I got on a plane to my mother’s hospital and my husband was eleven rows in front of me with my best friend. There was a note of hers in my handbag that she’d written on my fridge that morning.

I actually got as far as planning what I would say to her when we got off. I was going to say you will not believe the morning I have had.

Then the man in 2A turned his head to say something to her.

It was my husband.

I did not make a noise. I have been asked that four times and the answer is no.

I sat back down in 14C with my coat still over my arm and I held the armrests and I did not move for about eleven minutes.

They were laughing at something on a phone. At one point he put his hand on the back of her neck.

And then he kissed her, in seat 2A, on a one-hour flight, in front of about nine people who could see them.

That is the detail I have had to look at hardest, and it is not the kiss.