[Steve actually flinches at the question. Tony can't know that's a sore spot for him. He doesn't share his life with the team intentionally to avoid pity. It's for that reason he doesn't get mad. He just looks hurt. He has to swallow past the lump in his throat to explain himself.] I thought we were only sticking together until we found the stone. Thor has to go back to Asgard. I figured Sam, Nat, and I would go back on HYDRA duty. You'd go back to... you know. The company.