history: I haven't seen my son in 2 years since he left for the military. He told me he is coming to visit me for my birthday. I can't wait. I haven't seen my son in 2 years since he left for the military.
current: Oh, that must be heartbreaking for you. Do you know where he is?
next: I don't but he told me he will be home to visit me for my birthday. I can't wait!