For whatever reason , Ennis had changed , and Jack was excited to be the recipient of his new feelings . Still , a small part of Jack remained guarded . Ennis 's history required a bit of self - preservation , and Jack could n't help that . It hurt , but it was necessary .

Question: Why would Jack be excited the Ennis changed ?
Answer: Ennis and Jack like the same persons .None of the above choices .They both like to eat chocolate .Jack likes Ennis and now he thinks Ennis likes him .