The "Used to Love You" hitmaker gushed about her 39-year-old singer boyfriend, reported US magazine.
"I'm our biggest fan. I actually feel like I'm not in my own life, because I'm not. I'm in a different life all of a sudden. I'm so blessed and I feel like I believe in my path. Now there's all these miracles around me!," Stefani, 46, said.
The Voice coaches started dating following their respective splits from Gavin Rossdale and Miranda Lambert.
"There was so much of an earthquake in my life. How did I survive that? I don't know, but here we are and my life is full of so many blessings. I'm trying to really just be positive and grateful and look at it all like this was all supposed to happen," she said.