Looking for a little advice and support

[cbtdad]

So in the last 24 hours MIL and FIL have both called me to talk to me about W.
MIL tells me that she has told W to sprint not crawl to a counselor because all she does is sleep all day and then does nothing productive when she is up. This is her routine from the time she drops our S off at school till 3pm or so.
MIL says she has been like this for a couple of weeks since she doesn't have horse to ride. Which brings me to why FIL called. He is concerned that she only says to him that she is only happy when riding unless she is with our son. Her previous horse has gone lame so she is going to Florida next week to look for another one. We both agree that she thinks finding the right horse is what she thinks will make her happy. I told FIL that I was the last person that would talk to her about this stuff. Told MIL that I can't talk to her about being unhappy. I've told both of them I am worried as can be as well, but she needs to want to change on her own.
Man I hate this feeling!!! I want to help her, but I know I'm the last person right now that needs to be brininging up whether she is happy or not.
Just venting!!!!