Mentioned by Marcus,

You should create an entityreference field from the profile2

Please let me add a picture to explain this sentence in detail,

Mentioned by Marcus,

You should create an entityreference field from the profile2

Please let me add a picture to explain this sentence in detail,

Using hook_profile2_presave instead of using Rules

• Make a node with Fivestar
• Add Nid into profile 2

function mymodule_profile2_presave($profile) {
  // is_new is important becase we will add fivestar into mint profile2
  if ($profile->is_new && ($profile->type == 'main')) {
    global $user;
      // Make node for Fivestar and comments
      $node = new stdClass;
      $node->type = 'profile_rate';
      $node->title = 'Rating for the profile';
      node_object_prepare($node);
      $node->language = LANGUAGE_NONE;
      //TODO: Who should be the owner?
      $node->uid = $user->uid; 
     // No promote to front
      // Published node
      $node->status = 1;
      $node->promote = 0;
      //  Comments open
      $node->comment = 2;      
      // Try to save node
      $node = node_submit($node);
      node_save($node);
      // Save Fivestar NID into profile 2
      $profile->field_article_ref[LANGUAGE_NONE][0] = array('target_id' => $node->nid); 
  }
}