There are a few reasons she can think of that could be the reason why he doesn't like it. She's not as experienced. She's different. What makes her different makes her dangerous. Wanda has to assume the other women he's been with were different to her—normal, without powers, and possibly without all the baggage that follows her.

"It's not just about me, Bucky. It's sweet that you're so focused on me, but… you're going to be there, too." She grips his hand, and this time it's her turn to sweep her fingers over his.

"You should like it, too. That's important to me," she says quietly. "There's a chance—maybe a really small chance—that you won't like it, and I want you to know that's okay."

She knows deep in her soul that he'd tell her the same thing. It's okay for her to not like it; he won't be offended. Wanda just happened to get there first.