He came for her was,  of course, an exaggerated  statement. He left only his belongings and immediately Apparated to the Burrow. He devoted a few minutes to Hermione to ask if she had cleaned his suit. She confirmed that she had and his only reaction was to inform her that he was going to the Burrow and that he would be  back late. He also told her that she should not wait to have dinner with him, he would be having something at his parent’s house. With family. He returned well after midnight and after downing some glasses of whiskey. Alcohol helped Ron with feeling unexpected sexual attraction. 