This sounds eerily familiar. Even down to the family member diagnosis.
I've been with my wife for over 20 years. I didn't want to put pressure on for very similar reasons.
Then it got worse. There was anger and nothing could be right at all. Our kids picked up on it (very similar ages too) and the whole house felt hostile.
I'm not going to go into detail as this is probably where our similarities end.
What I learned since coming out the other side and doing well. That I will share as I think it will be useful to you.
By this I mean you need to look at what she does and be there to support. Cleaning. Cooking. Organising. Find what can be done to make this a shared load. Don't ask if you can do something, just do it. Like cleaning the bathrooms. Organising dinners. You may do these already and if so figure out something else you can do. Kids homework or sorting school uniforms ready for the week.
- Listen and be understanding.
Your wife has a huge amount going on. And its entirely possible its too much to manage internally. She may be distant because you are the safe part of her life thay can be shelved for a while so she can focus her emotions on everything else. I'm not saying this is ok or right. I'm saying its understandable and the best thing you can do is listen.
Listen to what she wants. More time with her mum. Make it happen. Create memories however small for her and her mum.
Talk about what can help her mum like jelly drops to keep hydrated. Show you are right there with her and thinking about her mum too.
Talk to her not just about your marriage but about what shes going through. My wife says its like having "tabs" open in her mind and each is a different thing that vies for her attention. Talk about what she has going on and be her safe space to unload with understanding and support.
Never underestimate the importance of a hug. And just a hug and not wandering hands or anything else.
Hold her hand whenever possible. Keep trying whenever possible and if asked what your doing say. I want to hold your hand.
Sex is important in a marriage yes. But it is never the most important thing and there are times when it does need to be moved to the benches for a bit.
Make her feel wanted. I buy flowers every single week. I do take chores off her plate. I do hug and hold hands. I do listen and figure out how I can best help with any of the tabs she has open.
Tell her you want to give her a night out or a day out. And dont then leave it for her to organise it. Arrange for the kids to be looked after and figure out by yourself what you are going to do and make it fun.
Make sure she has time available to see her friends and socialise too.
Now to the talking part.
Do not go into conversations thinking its just about you. Talk to her about everything you see her going through and let her know you are there and not going anywhere at all.
Do let her know that you have felt like things have been off but after taking some time to think you realise she has so much going on and that you want to be there by her side through it all with her.
Myself and my wife had stopped communicating for a while. When we did start we figured we both had the same needs. To feel wanted. To feel supported. To feel like we were there for each other.
On the dementia side. Dont give false platitudes. Its not going to get better. Infact its going to get a whole lot worse. So make sure your wife knows that you understand this and knows that you are right there with her. Its really important to try to find those moments of clarity when they still exist for your wife and celebrate them. That means spending time together and figuring out what brings those moments. Music helps. As does talk of the far past. And if they are able to travel. Trips to places from the past where your wife and her mum have shared memories.
Its not going to be easy. But be open. Be present and be understanding.
It took a huge upheaval for myself and my wife and there are many things I wish were different. Part of which was my unwillingness to put pressure on. By this I mean talk at all. Not actually put pressure on.
Where we are now though is good. I see when my wife looks at me just how much she does love and want me by her side. And she knows beyond doubt that I feel the same.
Oh and one more thing about anger. Do not. Not for a single instant let it get into you. Not for any reason at all.
If your wife does get angry. While thats not ok. Be the calm space and do not get angry back. Instead just listen and figure out where the anger is coming from. Much like a pressure cooker. When everything builds to boiling point at some point it will come out as a roar. This is probably what the inside of your wife's head feels like.
By being there and taking some of the pressure off that roar lessens.
Best of luck. Do not fade into the shadows of your marriage. Step up and be present always.