Tony might be reckless and stupid a lot of the time, but he's aware enough to know who to trust. It would be nice to say he was just that optimistic, but the truth is that Tony Stark works with facts. It's a fact that the Hulk protected Bruce, and it's a fact that he saved Tony, even during the heat of that battle. This isn't blind trust he's placing in his friend. It's a pattern, something Tony recognizes as Bruce's own subconscious desires and reactions translating through the Hulk. He doesn't trust himself, and sometimes bad things happen when you don't trust yourself. But Tony's sure that this time they are both safe.

"It's not luck. Remember? We both should have been in a lot worse shape already, but we're not. And it's got nothing to do with being lucky."

Tony takes the opportunity to lean forward, stopping just short of giving Bruce another kiss there on the couch. He can feel the man's breath and he imagines he can even hear his heartbeat. But that's probably just his imagination.

"It's my life. Let me take this chance with you."