That's really unfortunate because whether or not she's a lesbian, you're (presumably) not. If you're not inclined in that way, it wouldn't be an issue to spend time with her.

If you connected with this friend, I'd contact her after your seperation and apologize. Tell her your husband was intensely jealous and didn't allow you to have a social life. You don't have to give any great details. She may be very understanding and be a really good friend to you.

I hope all the best for you.

Edit: I didn't notice the second page when I posted. Please be safe. Can you request support from someone when letting him know about the separation? Police, even?