"You're welcome to come whenever you want, for however long you want." The nice gesture was out of his mouth before he could think it over but Tony realized he'd meant it. He preferred to be alone a lot, but he didn't mind Steve or helping him. Learning and discovering the new world would probably be less hectic or painful if everyone came together. "I'll do my best to help as much as I can. We'll figure everything out, I promise."
He grimaced at the thought of Steve's nightmare-like experience. Well now, that explained a lot, didn't it? "Three days? And you only had one experience? I had two different ones. Everything that could go wrong in my life did, all in one day. And then in the other one? I died." But Tony laughed at his explanation. He didn't know why, but he did.