Vision and Nat snuck out of the compound the next morning, too early to be noticed. Vision was thankful he didn't need to sleep; he'd been researching all night.
He was glad to know that Wanda was in better spirits today. She seemed to be comforted by the idea of consistency amidst the chaos that fugitive life brought; another piece of evidence that substantiated his theory.
When the jet landed, she ran to him. He picked her up, spinning around in a circle as she smiled at him. She let out a small gasp at how tight he hugged her, but immediately relaxed into it. He could tell she felt immense relief. He filed this information away for later.
Steve and Nat glanced at the pair, turning to walk away in order to give them some privacy.
"I have missed you."
"I've missed you too, Vis."
They sat and talked for a while. Vision noticed that she absentmindedly transferred red strands of light from hand to hand, as if she didn't even notice she was doing it. The action seemed to calm her, though. Something else to file away for future consideration.
Their conversation drifted over the more mundane details of life that they missed from not being together; what life at the compound was like, what life on the run was like, what missions they'd both been on lately, and, of course, some playful fun poked at the "dating" comment from Tony.
As he listens to her, he falls in love with all that she is even more. She is loyal to a fault. She doesn't judge him for being an android (something that he couldn't ascribe to many humans he'd interacted with). She describes things in such accurate detail that he can imagine them perfectly. She is strong and resilient, despite all she's been through.
It was only when she asked him, "Vis, what are you thinking about?" that he realized he'd just been staring at her for a few minutes and not taking.
"Oh, n-nothing." he stuttered.
He trained his focus back on her, grabbing both of her hands. "I love you Wanda Maximoff."
"I love you too Vision."
It was then that he knew exactly how he would tell her.