There may have on the human level I don't know, but it surely wasn't news to Him he was always with the Father in heaven even when he was on earth.
Joh 3:13 And no man hath ascended into heaven, but he that descended from heaven, the Son of man who is in heaven.
It was the human level I was most asking about - I know all we can do is speculate. But speculation is some of this forum that is fun, when not Klannishly trashing other religions... But I was thinking it gives us a thrill when a loved one affirms that love: perhaps it worked that way for Him too. Like I say, I dunno.