Using a computed field: How to extract a field value from a referenced node into field collection. (Multiple value)
You can do something like this:

$referenced_titles = array(); 

foreach ($item2 as $indice =&gt; $values) {

  // use node_load($nid) to load the node. 
  $referenced_node = node_load($values-&gt;field_nombre_2['und'][0]['target_id']);
  $referenced_titles[] = $referenced_node-&gt;title;

}