I don't type most people as ESFP, though. I do make jokes about it with the whole closet thing, but this guy sounds like a reasonable candidate for ESFP.
Really we're running on so little information that it's hard to say with any kind of certainty...we haven't met this person; all we can do is listen to her explanation and make a guess as to which profile he fits most closely.
She mentioned that he's very tolerant and good with details. Could still be ENFP, but I'd want to hear more about what his hobbies/interests are and preferably sit down and talk to him for a while before I try to make any real determination between ENFP/ESFP. Either is possible.