Rachel walked into the diner, and saw Lorelai helping Luke put on his belt. He was dressed up, something that she had never been able to get him to do.
Lorelai looked up, "This is not what it looks like."
So she was nervous that it looked like something else, "It looks like you're dressing him."
Lorelai was such a wonderful person, and Rachel couldn't believe that she hadn't noticed it sooner. The two of them were so nervous trying to explain the sales at Bloomingdales.
Maybe there was another reason why Luke was so wary in accepting her.
Lorelai.