get a nice hotel room for the days before he goes or the weekend and make it like a holiday for two, go out have a nice dinner, go to movies, dancing, whatever you both enjoy. also go to the airport with him to see him off and maybe give him a nice sentimental gift of you, maybe a nice framed photo of you both. hopefully he will return to visit you and his family again in time.
When I tell the truth, it is not for the sake of convincing those who do not know it, but for the sake of defending those that do.
William Blake