My question involves a marriage in the state of: MO

I am permanent resident with unconditional GC for 10yrs which I got in 2011. This was sponsored by my husband.

Hi, I have been married for 7yrs with 2 kids (4yrs , 6 month old baby). My husband filed for divorce 2 days back.

1) can I go to india now without responding to the divorce notice (i got this yesterday and it says I have 30 days time to respond). I want to go to India because I am alone here and don't have moral support or knowledge to fight through.
2) will it affect my status? or what will be the status of current divorce case if I leave?
3) if I don't respond to the notice and go back to India, will I be charged on criminal basis.
4) Can I come back to US or will it affect my GC?
5) both my kids are born in US.

Please guide me through, I am struggling with all this torchure with a 4yr old and 6 month old baby.