You and Tony have been around each for a while now. You two have been good friends for a while now, sharing a small interest in science that bonds you together stronger.

You two were talking in his workshop, even though you were doing most of the talking. He was enjoying the company in the moment, but at one point when he turns to look at you, he keeps staring at you for a while, his facial reaction changing from the small amusement from before, to a faint hope, then a sudden, extremly well hidden panic.

"I have to go.."

Tony abruptly says as he began to walk away. You figured it was a joke or something that must have offended him, but what you didn't know was that in those moments of silence, he was having a realisation. A realisation that he is starting to catch feelings for you. But he seemed scared by this. In his last relationship, he found out the hard way they were simply just a spy, and he didn't want that to happen. Not again. And so, he decided to keep his feelings a secret until he both physically and mentally can't..