Sounds like that toxic relationship continued through divorce with her making everyone "take sides" and stealing all support. Can't give you any advice, you could reach out to some of your closest friends... Or, just start fresh with new people.. like, moving to a new city or neighborhood.
Good luck! Stay safe and strong :)
I use FreeTube on desktop (it's on f-droid too!) because you can create subscriptions under local profiles (e.g. some of mine are: music, diy, news, etc.) and it allows to export or import subscriptions so you could sync devices every once in a while. Oh and a whole export holds all your profiles.
May not be perfect but I like switching front pages with these profiles...