That’s a great question and one I can’t unfortunately answer. My gut says you’re overthinking it. If they didn’t want to interact, they could not answer or do a fade, so I think you’re ok. I think it’s also ok to check in and ask. The older I get, the more I like being direct and asking tough questions instead of constantly over analyzing. It’s sometimes uncomfortable for a moment, but clears headspace.
I haven’t been in this situation. And nearly all my friends married later, think 35+, and so I weirdly don’t have divorced friends. My husband was married before me, and that ended badly/no kids so he had zero contact with her peeps. He won’t even talk about her to me.