You're going through nearly verbatim what we have just a couple months ago. I FEEL every word your writing as those feelings were nearly duplicate of my own.
I'm not close to the only one. Many hear will chime in to say much the same.
The disappointment is a big thing. You think how can this be? You'll look at the same information multiple times thinking it will change? You'll pray for the things you've learned to not be true!
You are absolutely NOT alone. You're feelings are valid not because those here want to love-bomb you but because they are real and factual.
As to what to do with the inquiries. Say as little as possible. It is really difficult as a Fade to keep it zipped. Not because you're a fault finder but because you know things now that are so blatantly false so you can't help but want to say "that's just not accurate".
For that reason and I'm sort of being funny here but don't trust yourself. Keep it short and sweet. Be vague. "i'm fine just going through some difficulties". If they press. "I'm not ready to talk about it but I really appreciate you checking up on me".
All the best, welcome to the forum. Great folks here.