There was no set time for the Budapest Operation since it was never explained what exactly happened in Budapest.

"I don't need constant watching, Barton," Natasha informs Clinton hotly, her green eyes watching his every move as he cleans his bow on one of the beds.

"I don't think Director Fury would agree, especially not when it's coming from a former Russian-KGB-assassin-con-artist whose temper gets a little too hot sometimes," Clint says smoothly. He stops cleaning to send her a smirk. "But as long as the door to this hotel room is heavily guarded by SHIELD's best, I don't think there's much you can do about it. Plus, I'm here to keep you from murdering anyone."

"Are you sure about that, Barton? I could've easily killed you, back when you-"

"But you didn't, and that's why I don't think you'd do it now," he points out, his eyes returning back to his beloved matte black bow.

"And why would I not? I still hate you as much as I did then, and I'm busting out of here, whether you like it or not. Tell me, Clint," she says, taking a step closer to him, "why do you think I came here; with you of all people? Why did I come on a mission to Budapest?"

"I think you came here because Hungary is closer to Russia than New York is," Clint replies, never taking his gaze off his work.

"Well, we have a winner!" She shouts sarcastically. "I'm going back to the KGB because if I don't, there's going to be a target on my back for the rest of my days."

"Listen here, Princess," Clint says firmly, getting up and grasping the back of her head, careful not to pull her hair. "You're not going back to the KGB or the Red Room. You're not going back to the horrors you left behind. You only want to go back to that hellhole because it's the only thing you've ever known and mammalian instinct is telling you to go back because you think that's all you've got. But let me tell you this: you have me, and for as long as I live, I'm not letting you out of my sight."

His fingers wrap around locks of her fiery red hair lightly as he kisses her on the forehead.

The next morning, waking up alone, Natasha realizes they both will remember what happened in Budapest very differently.