Arianna, (I love that name)
I apologize for this short reply, but want to urge you not to feel guilty or for lack of a better word, of this person's failing health.
Arianna, we are human,not perfect,but real,whatever has happened (I know nothing of your past,nor this person)but please do NOT beat yourself up.
So many events,situations, happen in our lives, so much of it we have no control of what the future has in mind.
I wish I had some words to console you, unfortunatly (sp?) I don't, but don't let regrets and guilt consume you.
Maybe a "PC hug," will help a teeny bit?
Or perhaps, hanging around and hearing what others here may have to say can be of help.
The members here are so supportive and really try their best, maybe just talking with us all can offer some input.
I must run, got so much to do, but do know your post has been read and we are all here for you.
Take care now,
DE