Even though I told him that I didn't think of him but I think he knew, because we are friends for a long time. I hope I'll see him again, it will be possible but difficult.
Even though I did not tell him I miss him, but I think they know because we have been friends for a long time. I hope that I will see him again, it would be difficult.
Even though I didn't tell him I miss him, but I think he know because we were friends for a long time. I wish I could see him again, it would be possible to be difficult.