Skating Around the Truth Who I Am

Natasha Romanoff goes to live in Avengers Tower when everyone else does, even if that includes a certain metal-armed assassin who has shot her twice. She's less than thrilled when he starts going on missions with them, but he's an excellent partner. It's almost as though he knows what she's going to do, and she begins to become suspicious that there may be more to their past than she remembers.