Sentence 1: Gina and Mary were feuding. 
 Sentence 3: But she hadn't been the one to start it 
 Sentence 4:  She hadn't realized all her other friends would take Mary's side 
 Sentence 5:  If she apologized, it would only be to regain her other friends 
 Given Sentence 2: Gina considered apologizing to end the feud.