As they lined up Samuel realized this was going to be the closest to the normal concert experience they would get. People were shrieking, pushing, trying to get closer, the security guards were doing their job, but it all still made Samuel feel anxious and panicky.
At this point in his life he knew most of his triggers, they included violence, especially against children, people yelling, especially people yelling at him, people fighting, getting punched, slapped, kicked, hurt and so on. And there was more of course, but the point was that he often knew himself to enough to avoid situations where he was likely to encounter any of them. In a situation like this though, he wasn't really in control, he couldn't really leave and everyone was loud and acted unpredictably, plus the security guards made him nervous despite having ensured the line got calmer and thus more manageable, because what if someone did something they shouldn't and the security guards and to yell or physically stop them.
This was why they wouldn't have been able to go to a normal concert. It was also due to some of Roman's health problems of course, but this was part of it.
But then Roman wrapped his arms around him and started singing, softly, in French, which was how he had calmed him down when he was scared the times they had flown. He closed his eyes and just focused on Roman's singing, he didn't know the words, but he focused on them and took note of every single one in his head. In counselling, he had learnt that playing music loudly could be a grounding technique when you felt like a flashback might be about to happen, because it was hard to tune out that part of reality. He supposed Roman singing quietly, but close to his ear was kind of the same thing, and him holding him ever so gently helped too because it was only Roman who did things like that for him.
"Thank you," Samuel murmured, it was a thank you for understanding, for helping, for being there. He loved his husband so much it was unreal and things like this just made him love him more.
Eventually, the line started moving, slowly. Samuel tried to count for how long time passed between each time the line moved forward. This was a little difficult to do when also trying to calm himself by focusing only on Roman, but he managed to figure out that there were a couple of minutes between each time it did. There were a lot of people there so Samuel didn't expect anything but to be rushed in, take a picture, and then be rushed out. He didn't mind though, he mostly just wanted a picture anyways.
The line moved forward, the people in front of them got a little louder due to excitement, Samuel ignored them to the best of his abilities and said, "You know, he's like 5'5, any picture we take is going to look kind of silly because of how tall you are" to his husband. He didn't speak very loudly but due to how close they were Roman would be able to hear.