im not understanding the scene on the kissing and mock exams. what. im so confused

He kissed her, she freaked - saying it's because it was in public - he suggested going to her place, she wasn't sure about that - she didn't want to invite him just to kiss (maybe something else) and he picked up on that (as he always does) and used studying as an excuse - which she understood.

Yes, he is giving her a legitimate excuse to let him inter into her house, so she won't feel obliged to refuse...