Looks like you have snowflakes for step kids and a disney dad husband. How dare he 'chastise' you in front of them.. Also there's no need for them to be cold shouldering you after you apologised. They sound like a bunch of ass****'s imo. 

Sad to hear this. It is important for young people to be aware of the ups and downs of life. These aren’t even young children who need to be sheltered they are young adults. It was disrespectful of your husband to talk to you this way in front of them. If he did have an issue he should have spoken to you in private about it. Sorry to hear this happened. 

Sorry that happened. It must feel shitty. It’s hard when your own spouse doesn’t support you. And it’s hard when you have bratty stepgranddaughters that you have to go out of your way for and they aren’t mature enough to show empathy for you. Sucks big time. Big hugs to you dear. Take care.

I guess without knowing what was shared it's tough to know whether it was or was not really appropriate to talk about with these grandkids.  I know they are teens/adults.. but sometimes sharing our burdens with others is just shifting worry and honestly  maybe they weren't the right audience.  (this site might have been a good OT blog space to vent). 

Now, it's not nice for your husband to chastise you in front of the kids either.. sounds like you both faux pas'ed a bit.