> There apparently is no way to cleanly divide purchases in a Divorce or separation, even if the person was fleeing an abusive situation

Believe it or not, google is even more stunningly incompetent than that.

If you have someone in your contacts there literally is no way to (1) retain him/her, and (2) ensure they are never, ever, for any reason, suggested in any product. eg in google docs, I do not want "@" autocompletions to suggest the person. No sharing, no drive sharing, no email cc/bcc, etc.

In my case, there was a breakup with a cofounder / exit from a company and ongoing collaboration with a friend who shared the same first name. I actually had to delete the former cofounder's contact, which made me miss some calls from an unknown number.

Having someone that you need to occasionally maintain contact with that should never be prompted in any way (exes of all types, divorced, stalker) is a basic need in real-world systems.