"I guess the thing that surprised me is that I would never expect to ever have a man this good-looking ever be my best friend," she tells the magazine. "I just would never assume those things could happen, but he is. He's the most wonderful, lovable, family-oriented, sweet, hilarious, amazing guy."
And that's not all.
"He actually taught me how to be fair and to stand up for myself," she reveals. "It's my biggest weakness: negotiating. I'm a wimp about standing up for myself and Liam is always fair. He's always on time, he's always doing his job, and he's good about making sure that things stay fair. He's teaching me to toughen up a little bit. That was important, I need that."
Clearly, the love between the two is mutual.
"Jennifer cares about the people around her, she has a big heart, she's amazing at it," Liam told Good Morning America's Robin Roberts about J. Law last Wednesday. "You couldn't ask for a better co-star than her, she's great."
Admit it -- these two look pretty great together.