So sorry to hear that your marriage didn't survive through Covid, this damn virus has taken away so much from everyone.
While I've never had a live in service provider, I've been living with roommates for years now and just moved into a new place in January with two straight guys. I always try to work around their schedules and when I see them in the common areas I always say hi and smile. If I see they are up for talking I love to listen and get to know them more, I had a nice conversation with one of them in the kitchen yesterday. I also give them their space when they need it if they don't feel like talking, or if they're leaving for the night, or have guests over.
If someone is doing something around the apartment that is bothering someone else we all talk about it and find a resolution.
I do not know if that helps in anyway whatsoever but wanted to share
Wishing the best in this because it sounds like a great idea.