Yes, Landon Nickerson and The Wizard Liz are married. Popular content creator, The Wizard Liz, or Lize Dzabrailova, who is known for creating motivational content for young women, earlier in a series of March 28 Instagram stories, revealed that her partner, Nickerson, cheated on her by texting a girl named Payton on Snapchat.
Liz mentioned that the girl reportedly reached out to her with "proof." While Liz and Nickerson had officially not issued a statement about their marriage, or mentioned details about their marriage publicly, a deleted post and old comment has surfaced on the internet, where both refer to each other as husband and wife, and seem to confirm their marriage.
Nickerson while responding to cheating allegations and fan backlash, posted a screenshot of a fan dm, while talking about their "marriage."
"I didn't create an account to message someone. I opened an app, I've had for years, and messaged someone from the past. Weak and not okay. Our marriage is not technically legal but she is my wife. So it's "fake" in some way but real in every other way. Again. Sent a couple texts, immediately felt bad, should not have done that, owning it."
While an old comment where Liz confirms their marriage status shows,

"I'm not a perfect person, I made a mistake" - says Landon Nickerson amid cheating allegations with The Wizard Liz
Landon Nickerson, in another Instagram story, also addressed fan backlash against him after The Wizard Liz accused him of cheating, while mentioning that he wants to "earn" Liz's trust back.
In the video, Nickerson can be heard saying,
"Look, I fu**ed up huge. I am not a perfect person. I made a mistake. A huge mistake. And, although that's the case, I genuinely am curious, if you guys believe that people can make mistakes and get better. And I genuinely pray, that in the event that I am able to clear that I am able to clearly demonstrate that this is not who I am, this is not who I wanna be, this is not who I will be, moving forward, for the sake of my family, and Liz.
He went on to add,
"Most importantly, Liz.That if I am able to earn her trust back, and earn her respect back, that you do not evil-eye the s**t out of her, or my family."
Meanwhile, Liz posted another series of stories, where she questioned Nickerson for allegedly acting clingy, spending a million on her, make her get rid of her apartment, as they wait for the visa process, and then allegedly cheat on her on Snapchat.
She also went on to accuse Nickerson of love bombing, and said that the "most embarassing" part of the story for Nickerson was that he was rejected by the girl he tried to cheat on her with.