Nearest I got to this was a girlfriend's mother.
Having warned her of the problems before the fact, offered marriage so that mom could see her daughter wed (declined) and been told she knew how to deal with it having seen grandma decline I shut up.

Come the inevitable I was progressively squeezed-out until a third party noticed and hovered. After coming to the conclusion I was no longer of use to the lass I made my stand and asked for a decision in a week. No decision was declared so I decided I was obviously surplus to requirements. Only then did the import dawn on her and suddenly it opened her eyes.

We don't live together so if you are that domestic you dun gotta keep talkin. Get it said. If they weep all the time let it flow. If they hold it in find a way to uncork it. It can be forced but it nearly cost a lot in our case. And it cut pretty deep with me.

People deal with it in their own way - but that doesn't define if their way is beneficial (to themselves or to those around them).

As the Queen Mum said of loosing her Bertie "It doesn't get any better, you get better at it".