I know someone who married in prison.
I suppose the actual ceremony would change quite a bit depending on what your partner has done, but you seem unwilling to disclose that, so I presume that it's something pretty bad.
His wasn't that bad (I mean, it was bad enough, but nobody died) so they were allowed to touch and the prison kept guards to a minimum. They explained the process to her so that she could plan around it, and let him have a slice of the wedding cake. It all went like it was supposed too.
She was upset afterwards, though. I think in the excitement of planning a wedding, she'd forgotten that she still wouldn't have a husband afterwards. It was quite a come down, and she was pretty depressed. She talked to me at length about how much more lonely it had made her, and that she felt even stranger being married without him ever coming home.
They split up 10 months after the wedding. They haven't divorced, but she's not going to put her life on hold for him while he serves - she feels that she has lost enough in the years gone by, and she does get judged because of what he did.
I think that they'd still be together if it wasn't for this, to be honest. They love each other, that much is obvious. They were both 100% sure that they wanted to get married, and that they'd stay together after he was sentenced. It's a huge barrier to life, though, and while she looked forward to his release, she did foresee him being unable to get a job and the extra stress that money worries and living together again would bring. Once you've been on your own for a few years, it doesn't take long for someone to drive you up the wall - especially if they've been used to prison life, and enjoy leaving a mess everywhere just because they can now.
It's an odd one. I'm trying to just be there for her.