I love this rumor, so I'm repeating it. Background first:
https://www.coe.int/en/web/anti-human-trafficking/greta
"GRETA
"About GRETA – the Group of Experts on Action against Trafficking in Human Beings."
The rumor is that someone told Andrew Tate that "GRETA is looking for you", he misunderstood that as one of the right wing scumbags' favorite punching bags, Greta Thunberg, and that's why he lashed out at her, before she had anything to do with it. She simply responded.
He played himself.