yes he has , its time for you to move on . he's married to someone else by now
he's to busy getting some of that prison booty!!!!!!!!!!!!!!!
The hardship of prison life might make it difficult for him to write letters. Maybe guards censor and confiscate his letters, too. You haven't provided much detail, so anything is possible.
Maybe he has a boyfriend now.
Yes, now get back in school so you get some education and turn your life around before it is too late.
That would be my guess.
Why would he ignore you ... if you're engaged, you'd think he'd love to hear from you.