Just agreeing with what every one else has wrote, as long as he has the stamps in his passport and you have pictures together, you`ll be fine.. When my wife and i applied for her visa at xmas, we sent them as many pictures of us together as we had and all the info you have said you sent.. He can ask the travel company to confirm he booked a flight through them and also he can prove he went to meet you with the stamps in his passport,
try not to worry, you`ll be fine, but from experience, i know its a stressful time, good luck
