A very simple yet important question PLEASE READ Guys especially!!!?

I am deeply in love with my boyfriend of six months, and he has decided to move out of town I desperately want him to stay but he says hes not sure about staying or moving yet.In the meantime he has become distant (like not wanting to sleep together not calling as much) My question is this: Do I back off for awhile and pretend like i dont notice and dont care*kinda play hard to get,which im kinda scared of doing becausewhat if it reinforces his thoughts on leaving if im a ***** towards him* or do i continue pouring alot of love and attention into him and this relationship showing him how much i really do care in spite of how distant he is?? Which one do guys really respond better to?? Keep in mind that i really love this man! thanks so much!