that is a tough call.. i guess it is safe to assume that your pup can't go with you right?? if that is the case... you gotta go with your gut.... if you think he is in good hands.... and if something happens are you able to fly back whenever??? if you are confident that he is in good health and in good hands.. i'd say go... your relationship with your bf deserves a nice trip home
your pup will not forget you but i bet he will be a lot bigger when you get back!!!