Maybe it's good that he got divorced and you are experiencing what you are experiencing. It's hard to figure out what's "ours" and what's another person's. Your jolted sense is certainly your business but that's a two-edged sword since it's coming from you, entirely.

What happens in his life is not part of you and what you are working on in your life. You feel what you feel based on past jolting, not anything coming from him; all you know about him is facts; he was married and now he's divorced.

Imagine if he was some guy you see on the street and the friend you're walking with says, "that guy was married a year before but got divorced since". Yes, it might impact what you thought of him if you met him but that shouldn't impact your life and what you are doing, thinking, working through. Learning to make those subtle differentiations (so we don't over-identify with others and get triggered by their circumstances/stories) so you "stay" you when interacting with other people is the heart of what therapy is about, to me.