Keeping SIL’s Confidence From MIL

I (30F) have a SIL "Riley" (14F). I've been in her life since the day she was born,

and we're very close. Riley is going through a bit of a difficult stage right now - lots of fighting

with her parents and not always making the best choices. So I took Riley out for some "girl

time". We had some sweets and I got her to tell me about what she's feeling.

This is nothing new, she often opens up to me about things that she doesn't

tell others. I didn't tell her what to do, I just gave her somebody to talk

to about everything she's feeling. There was nothing concerning or alarming in what Riley told

me, so I did not repeat her words to my MIL. My MIL is mad about