You sound like a good wife, and it's nice to hear how much you care about your husband.
The reason a lot of men bottle up their feelings or don't talk about them though is that we just don't have the time. By time I don't mean the 15 minutes it takes to talk about whatever is bothering us in the moment, I mean the uncertain amount of time where we won't be able to regain focus on the things that matter, family, work, bills, leisure.
Sadly, a big part about being a man is pushing emotional things off until the absolute last moment.
My father currently has cancer. It's not life threatening, and he is going through treatment but that shit has been around for a minute now.
I try very, very hard not to think about it, because when I do, I think about just how much shit we're gunna have to deal with, maybe not now, but at some point inevitably.
If something bad happens do I need to move back near my parents? How would my mother handle it? Do I have to take care of her if he dies? There's also other family issues that it would force me to confront. I have a lot of responsibilities where I live, how would I handle those? What about my career, how would it be effected? What about my wife's career? She's cried over him being sick more than I have. What if I drop the ball, everything goes to shit, and for whatever reason I can't piece life back together again? Would I lose my house? My wife? Was I a fraud this whole time who just happened to get lucky?
This doesn't even include the emotional bs I'll be going through since I do love my father dearly.
All of that is just one issue I have that talking about just isn't going to fix. I've talked to my wife about it a bit, about what we'd have to do if my father passed. She's on board with everything we'd need to figure out, but she's fragile and talking about this stuff with her makes her sad too, so even though she's never been anything but supportive over this, talking to her about it is just another issue in it of itself, since the last thing I want to do is ruin my wife's day every time I think about my dad dying. Still though, there's always something about it that I could complain about, worry about, obsess over.
So instead, I'd rather just ignore it, hope that it works itself out, and that whatever ends up happening doesn't fuck up my entire life.
Idk about women, but I feel like this is the kind of stuff that men bottle up and don't want to talk about, and at least for me, it's unrealistic to think that putting effort into talking about it would somehow make it less stressful.