Somehow I find myself in an advisory position for relationships

I'm in an unenviable position, lemme tell you that. I claim absolutely no expertise, special knowledge, experience or skillset in this domain. And yet time after time people come to me for advice, I tell them to do the most reasonable thing, often that's the first thing they would have done anyway, and when it all works out, they come to me for more advice. It's a never ending cycle.

There's little joy in it, you're always putting yourself in a dangerous position. If things work out, the upside is not too great, you'll get a small thanks and perhaps more work exposing yourself to greater danger in the future. And if it doesn't workout, they'll blame you for their ailments, put you on the pointy end for bad things that happened to them because of you, even if they had nothing to do with the advice. You'll be held responsible for everything awful that has happened in the history of them

It's a risky proposition, becoming somebody holding an advisory position vis-a-vis relationships.

And here I am, chugging along. The only way to do it is to disclaim all responsibility right from the start, tell people that you will absolutely not be held liable if things go south. And give them options and the way they could pan out. You could do this, one would say, except such and such are the outcomes that might not be in your favor, are you ready to accept the possibility you might have to shower in a bathtub full of ice for the next three years if you do this? Because if you don't want that, it would not be advisable to do it.

You're offering advice, but not committing to anything, just showing them the plethora of options and combinations of choices that will shape their relationships. Often this allows them to take greater control of their partnerships, without transferring the blame over to you. Really, you're not in the business of giving advice here, you're in the business of empoering people enough to make their own goshdarned decisions, and holding you as the mentor who guided them in the journey of decisionmaking.