NSUserDefault issue - swift

Question

I am creating a divelog app. When someone select a new dive, they will get an alert with two options: "Blank template" or "Use last dive as template".
The issue is with the later, last dive as a template.
Each dive I record the data to the NSUserDefaults. So, when someone wants last dive as a template, I just call each of the defaults and populate the tableview.
However, I am getting a nil error on the first field, the diveSiteTextfield.text, this baffles me:
Here is where the data gets saved to NSUserDefaults
As you can see, I added a print command to test to see if the diveSite field is nil, but it displays the correct data. The diveSiteTextfield.text is not nil.
import UIKit
import Parse
var diveUUID = NSUUID().UUIDString
class DiveDetails1VC: UIViewController, UITextFieldDelegate, UITableViewDelegate, UIPickerViewDelegate, UIPickerViewDataSource
{
let userDefault = NSUserDefaults.standardUserDefaults()
#IBOutlet weak var ratingControl: DiveSiteRating!
#IBOutlet weak var diveSiteTextfield: UITextField!
#IBOutlet weak var diveDurationTextfield: UITextField!
...
func toDive2NewParse () {
let diveObject = PFObject(className: "divelog")
diveObject["diveNumber"] = diveNumberInt
diveObject["diveSite"] = diveSiteTextfield.text
diveObject["diveDuration"] = diveDurationTextfield.text
diveObject["maxDepth"] = diveMaxDepthTextfield.text
diveObject["diveDate"] = diveDateTextfield.text
diveObject["diveTime"] = diveTimeTextfield.text
diveObject["bodyOfWater"] = diveBodyOfWaterTextfield.text
diveObject["diveBuddy"] = diveBuddyTextfield.text
diveObject["diveCity"] = diveCityTextfield.text
diveObject["maxDepthSymbol"] = diveMaxDepthSymbolTextField.text
diveObject["diveCountry"] = diveCountryTextField.text
diveObject["uuid"] = "\(diveUUID)"
// diveObject["diveRating"] = ratingControl
diveObject["entryFrom"] = "Divelog"
if PFUser.currentUser()!.username == nil {
diveObject["username"] = "Not Signed in"
} else {
diveObject["username"] = PFUser.currentUser()!.username
}
diveObject.saveEventually()
userDefault.setObject(diveNumberInt, forKey: "diveNumber")
userDefault.setObject(diveSiteTextfield.text, forKey: "diveSite")
userDefault.setObject(diveDurationTextfield.text!, forKey: "diveDuration")
userDefault.setObject(diveMaxDepthTextfield.text, forKey: "diveDepth")
userDefault.setObject(diveMaxDepthSymbolTextField.text, forKey: "symbol_maxDepth")
userDefault.setObject(diveDateTextfield.text, forKey: "entryDate")
userDefault.setObject(diveTimeTextfield.text, forKey: "entryTime")
userDefault.setObject(diveCityTextfield.text, forKey: "diveCity")
userDefault.setObject(diveCountryTextField.text, forKey: "diveCountry")
userDefault.setObject(diveBodyOfWaterTextfield.text, forKey: "bodyOfWater")
userDefault.setObject(diveBuddyTextfield.text, forKey: "diveBuddy")
userDefault.setObject(diveUUID, forKey: "uuid")
userDefault.synchronize()
print("DiveSite is ...\(userDefault.objectForKey("diveSite"))")
}
Here is the UIAlertAction that retrieves the "last dive":
#IBAction func addNewDive (sender: AnyObject) {
let alertController = UIAlertController(title: "New Dive", message: "Choose a template", preferredStyle:UIAlertControllerStyle.ActionSheet)
let buttonOne = UIAlertAction(title: "Blank template", style: .Default, handler: { (action) -> Void in
self.performSegueWithIdentifier("segueNewDive1", sender: self)
print("Button One Pressed")
})
let buttonTwo = UIAlertAction(title: "Use last dive as template", style: .Default, handler: { (action) -> Void in
self.VC1.diveSiteTextfield.text = self.userDefault.stringForKey("diveSite")
self.VC1.diveDurationTextfield.text = self.userDefault.stringForKey("diveDuration")
self.VC1.diveMaxDepthTextfield.text = self.userDefault.stringForKey("diveDepth")
...
self.DNo.textView.text = self.userDefault.objectForKey("diveNotes") as? String;
self.userDefault.synchronize()
self.performSegueWithIdentifier("segueNewDive1", sender: self)
any help on understanding why the nil will be greatly appreciated.
Updated with Vladian's comment