My relationship is on rocks he says he write me but have received anything is he playing or is he true how do i know if need to let go n move on or do I fight??

You have to believe what you see with your eyes. You say it's on the rocks, incarceration is not a remedy for broken relationships. If he is writing and you are not getting the letters, then you might try calling his counselor or the mail room and inquire IF he is sending mail. If there are no letters, what is there to fight about...? Only you know your man, was he true to you before he went in, then we suggest ride-or-die, if he was not... move on, life is too short and there are a lot of great men out there to select from.