Recently, her MAFS co-star, Martha spoke out about the response the reality star had received on the photo.
Kalifatidis told the Daily Mail that the reality star has an autoimmune disease that provokes weight loss.
"I don't think there is anything to worry about. I think she looks great and wasn't it a year ago that people were calling her fat?," the 31-year-old said.
"And now they are saying she's too skinny. Just leave her alone, it's her body and she can do what she wants with it... I'm pretty sure she was quite open about having health issues, so maybe that has something to do with it?" Kalifatidis continued.
"Maybe instead of everyone just saying, 'Oh she's [too skinny],' dig into it a little bit more and you'll learn or find out the truth."
At the time, the tradesman said he didn't "usually date girls her size."
According to the Daily Mail, Sobinoff will be appearing on the next season of Married At First Sight as an "intruder bride" in the upcoming season.
See the exclusive photos of Liz on set here.