Don't you know (that you're toxic)? (слэш)

Tony's bad at saying no. He has largely accepted that people need him, and though there can be power derived from that, he's seen too much not to feel the burden of that responsibility. Even the Rogues can still finagle tech from him if they play their cards right. And maybe that's why Barnes has decided that Tony needs protecting.
(It isn't the only reason.)