<human>: Can you provide a brief overview of the text?

Hello all,

This seems like the right place for such a question, but if its not I apologize.

My issue, I guess our issue is my mom is severely depressed. She had a very tight-knit relationship with my sister and my nephew, which was abruptly ended when my sister moved away a couple of years ago.  My mom has had a progressive slide back into a place I have not seen her in since the divorce. My relationship with my mom is solid, but nothing even close to what she had with my sister.

At this point I should also mention that me, my wife AND my stepdad are introverts, we don't socialize much, we both have small close circles of friends whom we see rarely and everybody in those circles is okay with that. 

With the backstory now all laid out, my mom is now attacking my wife (through me, not a direct conversation with my wife, their relationship has never been bad, not the warmest but certainly not resentful) for snubbing her, or not wanting anything to do with my side of the family. This of course is not true, I mean the anti-social tendencies I could see how it would appear this way, but it is not and her accusations are making things difficult for me and my wife. I want to attribute this to her fragile state of mind, as well as just bad timing but I'm also worried if I ignore it it's just going to get worse.

I'm at a loss. My current plan of action is to wait a couple days, gauge my mom's statement of mind, and take her out for dinner with my wife and get anything and everything out in the open. Is this a good idea? I'm not a good people person by any stretch.

Thanks for the read, any thoughts would be most helpful!
<bot>: Mom's depressed, attacking wife on very shaky grounds, unsure how to manage this and keep all parties involved amicable.