Scretiveness characteristic of workaholism?

In case it matters ... I'm gay and my partner is a bisexual man.

We have dated almost three years. We've become very close. Sex with him is the best sex I've ever had. Our relationship is about much more than sex. Following are excerpts of emails from him.

I was just thinking about you.. Well, let me re-phrase that, I always think of you, but today more.
It would be awesome sleeping together!
Well, when I think of you many things come to my mind, like how much you care for me, what a great person you are and of course the great sex we have. Honestly you’ve been on my mind a lot. I want to see you...
I'm always here for you.
We were both wanting more than just a casual thing, didn't we?
We have a great connection, and also great sex as well
We could talk about almost anything, you opened up to me and so did I. I want to spend more time with you, also spend nights and do things together.
I will make the time to make it happen..

He has always been reticent to share things about himself but has opened up a lot over the last several months. He is away on a business trip. He fell ill and had to be hospitalized. That was a week ago. He won't tell me about his diagnosis and prognosis. He won't tell me the name of the hospital he's in or whether he can have visitors. I'm his fiancé. I think these are reasonable questions because I want to be with him and support him.

What does this say about him from a psychological perspective? I'm certain he's not a narcissist. He does not have PTSD nor does he have ADHD. He is a workaholic. Is this privacy characteristic of some kind of mental problem?

His actions don't necessarily indicate the kind of issues that warrant a diagnosis. You said that he is reticent to open up, but has done so (to a degree) over the last several months. Perhaps it takes him time but eventually, he comes around. Perhaps the more sensitive the information the longer he takes.

On the other hand, you're his fiancé. That doesn't mean he should automatically open up about everything but it does mean he should be truthful about the things that may affect your relationship.

I think this is a conversation you need to have with him - about these specific issues. You don't need to pressure him or give him an ultimatum but you do need to set the groundwork for communication. Not telling you the name of the hospital, why he is there, or whether or not he can have visitors seems a bit too much to me.

Thanks.

Wouldn't you agree that being very secretive is at least unusual behavior & perhaps abnormal?

I don't think he's hiding anything. I think he's dealing with trauma that he's not yet processed. Something is blocking him from being more open.

I think secretiveness deserves more study by mental health experts.