Letters to you

I am a letter writer. Well, I write letters to one person. It started when he went to basic training. It stopped before he was out of basic training. Then it started again when he told me those letters were what got him through and he still had them.
I don't write often, just often enough.
Our communication is spotty, at best. Though, I have talked to him more in the last 2 years than I have all our lives.
I don't know why we keep circling back.
In fact, I thought our story was done this past summer. I visited him. It was fine but I left early and I thought that was it.
Apparently not.
I can't say that I hate hearing from him, as infrequent as it might be. He says he wants to talk about real stuff. We have phone conversations that last an hour. And yet, I haven't been able to tell him the real stuff on my end.