Hypothetical: you’re married & a former close girlfriend dies - do you go to the funeral?

Had a dream that a former girlfriend of mine died unexpectedly. This was my first love kind of girlfriend but I’m married and she’s married so I chose not to go to the funeral so as to not make it weird for my wife and her husband but in the dream, I felt terribly guilty for not going.

We’re still friends in real life and though we don’t see each other often at all anymore, when we have seen each other over the years it’s always been when we happened to not be with our spouses and we pick up talking like we see each other all the time. Not in a romantic way, of course, just a purely platonic friendly way. Her parents and sister were all also customers of mine (not big customers but nonetheless) for a few years when I worked in a previous position.

The dream got me thinking — if you’re both now married and your “first love” former girlfriend died unexpectedly would you go to the funeral? I think if presented with this scenario in real life, I’d probably handle it the same way I did in my dream out of respect for both our spouses. I know if my wife died and one of her ex boyfriends (especially her first serious one) showed up to the funeral, I’d forever wonder if there was some sort of affair going on behind my back and that’s the last thing a grieving spouse needs but I’d definitely feel guilty for not going.