User blog comment:FairyRaven/Fairy Tail Chapter 325: Unity, Review and Commentary/@comment-71.146.139.183-20130401051141/@comment-4829046-20130401051937

It was all in order to activate Eclipse. The moment CS magic is used to travel to the past, Zeref can be vanquished. The kidnapping was a mistake, so instead he decided to explain the circumstances. He supports the Princess and Eclipse, so right now, his priority is stopping the Dragons.