WARNING: The following contains spoilers for Marvel's WandaVision Episode 3, "Now in Color," now streaming on Disney+.
Since the promotional material for WandaVision dropped, it's been hinted that someone is doing this to Wanda. The first two episodes of the series allude to this as well; however, as the show progresses, it appears Wanda is somewhat aware of what's happening, and she is fine with it, as seen in Episode 3, "Now in Color." Meanwhile, Vision has no idea what's going on, and his concerns are rising, even with Wanda rewinding events so he's more complicit. For this reason, Vision, in theory, is the one who's in danger.
Wanda Is in Control
Wanda, like Vision, is at times confused about what's going on in Westview. In Episode 1, "Filmed Before a Live Studio Audience," neither of them could answer Mr. Hart's questions about their past; however, when Vision's boss chokes, Vision is the one who can't do anything until Wanda tells him to, demonstrating how she has more control than him.
While in Episode 2, "Don't Touch That Dial," it becomes more clear that Wanda isn't 100 percent certain about what's happening, it also becomes more clear here that she has some control of this world. She's also aware of the fact that she poses a threat to others, trying to reassure Dottie that she doesn't mean to harm anyone, but Dottie doesn't believe her. While Dottie mentions that she's heard things about Wanda, the fact Wanda feels a need to say she's not a threat is odd, hinting that the Avenger may be aware of her power here.
It's also when Wanda is confronted about this that the radio message comes in from outside Westview, perhaps suggesting that Wanda's lost control of the reality around her because she's taken back by Dottie's accusation. With her walls down, the outside world can break through, and Dottie has more freedom, looking genuinely fearful as she asks Wanda who she is. It isn't until the radio explodes, that things return to "normal." After what's been seen of her powers, Wanda may have broken it herself, cutting off connection to the outside world and regaining control of the situation.
While this situation seems to have shaken Wanda, it's the end of Episode 2 that proves she has more control over this reality than expected. When a mysterious beekeeper with a S.W.O.R.D. logo comes out of the sewers, Wanda rewinds time. Along with ignoring this abnormality and demonstrating her control of this world, Wanda intentionally keeps Vision in the dark, erasing his memory of the beekeeper and eliminating his desire to investigate what's going on.
Vision Is in Dark
While Wanda is confused at times, Vision seems to be at even more of a loss, especially since Wanda remembers her life outside of Westview towards the end of "Now in Color." Furthermore, he also begins to take notice of the oddities of the town, like Herb cutting through his stone wall while gardening, and Vision decides to talk to Wanda about this. Wanda technically brings up this conversation, concerned their neighbors have noticed how different they are; however, Vision realizes that the whole town is off, not just them.
As he looks to Wanda for reassurance, the episode cuts back to earlier when Wanda expressed concern about the neighbors finding out their secret, and this time, Vision gives a more suitable answer, reassuring Wanda that it'll be okay. It's likely Wanda manipulated time here, like she did in Episode 2, and it's likely she's behind Vision's change of attitude. With Vision not jumping into action to help Mr. Hart until Wanda gave him permission in Episode 1, it appears Wanda is controlling him, forcing the synthezoid to play the perfect husband.
While his doubts briefly vanish, they return after the doctor mentions that small towns are hard to escape, and he catches Agnes and Herb whispering about Geraldine. While Vision could leave this be, he asks a fearful Agnes and Herb more questions. Coincidently, Wanda is distracted by Geraldine, who seems to have blown her cover. It could be that Agnes, Herb and Vision are free to be themselves and question what's happening because Wanda's distracted. This seems likely since Agnes and Herb become sitcom characters again around the time Wanda regains control by ejecting Geraldine from Westview.
At this time, it's unclear if Vision will retain his memory about this strange conversation; however, it's clear that when he's on his own, he's willing to question this "perfect" reality. Whether Wanda is fully in control of the situation is up for debate, but she is actively compliant. While Wanda loves Vision, if he continues to threaten their new normal, she may need to take action. She's already manipulated his memories and freewill, but there's a chance she could remove him all together, like she did to Geraldine.
Written by Jac Schaeffer and directed by Matt Shakman, WandaVision stars Elizabeth Olsen as Wanda Maximoff/Scarlet Witch, Paul Bettany as Vision, Randall Park as Agent Jimmy Woo, Kat Dennings as Darcy Lewis, Teyonah Parris as Monica Rambeau, and Kathryn Hahn as Agnes.