@mags314772,
Ah Mags... it's an honour she is bestowing on you... tho it comes with heartache for you. She can tell you how she feels and what she thinks, and all those things she can't say to anyone else, probably not even her hubby. You'll listen and feel the "helplessness" of the situation, because, as a friend, you'll want to make it better, make it right - but, you won't be able to fix anything for her. Trusting you tho, shows the strength of your friendship... and you were chosen for a reason. Just hold her hand when she reaches out and listen - and the more you can "hear" from her heart, the easier if will be for her to let go of the pain inside her, mental pain, not physical.
Sometimes.... often, it's much harder for the friends and family who have to sit, watch and wait for the inevitable. Being a sounding board, wrapped up in friendship, is the most you can do for her - and when you leave and say goodbye, take all her words and fears, annoyances and frustrations and throw them out into the wind. Don't wear them for her - she'll give them to you so no-one else has to know what she's thinking, and she'll trust you to let go of them when you leave. I know you can do that for her, I know you'll be strong.
Does that make sense? Maybe?
That is what I would think - just my feelings tho.
Take care Mags. x