I completely agree with your post.
No one is asking them to get into their personal stuff. All that is expected out of them is to calm them down or put some sense into them or just being there to support.
I just expected this much from Aarti. She could have just been there with her to calm her down. Just saying stuff "I'm always there for you" doesn't help. And if she's gonna be there for her outside the house as she had once mentioned also doesn't help. A friend has to be there standing by you irrespective of the circumstances and guiding you where you're going right/wrong