He had to accept that for now when Slughorn returned with the necessary potion. However, he couldn't shake off the feeling that something had happened between Lily and Snape that wasn't going to feel great having to swallow. Just when he thought that he had her all to himself, that great git had to show up into her life again. James's mind was whirling with the possibilities.
But then they were off and James had little to do but follow her, actually feeling himself start to get hungry as she mentioned food. Sure, he planned to skive off that whole day, but getting something to eat sounded marvellous.
"Fine, but I won't forget it," he said, still lingering on the Snape issue. Without another word, he took her free hand again, hoping that he wouldn't shake him off again. His pride was already wounded.