As we previously reported, Rousey confronted Paige at an event in L.A. back in April -- and cussed her out for congratulating Holly Holm on her victory at UFC 197.
VanZant says it's all water under the bridge -- "we're cool actually" -- and says she's learning a lot about Rousey in her book, "My Fight/Your Fight."
"It's really good and it's cool to kinda get inside and see the things that she's gone through that are similar to me," Paige said ... "So yeah ... no worries there."
Paige is gearing up to fight Bec Rawlings at UFC Fight Night in Vancouver on Saturday -- and essentially guarantees victory.
Check out the clip.