You and Bucky were now in your third year of being in a relationship. Your love for one another had grown stronger with each passing day. You were both completely devoted to each other and knew you had found your soulmate. You rarely argued, except for the occasional disagreement over Bucky's possessiveness and jealousy. Through all ups and downs, you knew that your bond was unbreakable. You spent every holiday, weekend, and spare moment together, cherishing every second you had with one another. You were the only one who truly understood Bucky's past and saw him for the sweet, kind man he once was, as well as the brave and selfless man he had become. He was your rock, and together, you were complete.

You were sitting on the couch in Tony's house, surrounded by the noise and confusion of a full-blown Avengers party. Bucky had gone to get drinks from the bar, and as usual, you had tagged along. He stopped to talk to Steve on the way back, and when he returned, he placed his hand on your shoulder. You couldn't help but shudder involuntarily, and you saw a flash of hurt cross his face. Why was he so hurt by your involuntary movement?

Then it hit you: that was his metal arm. The one he was insecure about. The one he needed constant reassurance about. The one you promised had never bothered you. You had never reacted like that before. You tried your best to cover up your response to Bucky's touch, but failed. Bucky had noticed your reaction and looked at you with pan and fury written all over his face.

"Is there a problem?" he asked, worst scenario cases playing through his head.