Against him — That is, against her faith given to him. Went away — Either for fear of punishment; or, because her heart was alienated from him; wherein not only she sinned, but her father by connivance at her sin, and neglect of just endeavours for her reconciliation to her husband.
Related Commentaries of Judges 19:2
Judges 19:2
2 And his concubine played the whore against him, and went away from him unto her father's house to Bethlehemjudah, and was there four whole months.