Long, complicated family back story.
My mum comes from old money and don't we all just know it. She has an innate sense of entitlement to wealth and has never taken paid employment. Their lives, their lookout.
When DH1 and I split I didn't have much money and I worked incredibly hard to make life comfortable for both of my DDs. I have never asked for nor been given money by my parents.
DD1 has inherited my Mum's high expectations around her standard of living, also without having to work for it herself.
DD1 is married, I gave them money towards a deposit for their first home, so did her in-laws and it isn't a small first home at all.
7 years ago I met DH2. All of our DCs have left home and we live a comfortable lifestyle. Since we moved in together, before we got married DD1 has made catty comments about the amount of money we have. These have escalated and are especially galling because we as a couple are generous with all of our DCs. Now DD1 has started to be overtly unpleasant to me and DH about how much money we have, we aren't at all ostentatious. She is just jealous.
Following a recent lockdown catch up on FaceTime DD started to become angry without provocation, as I tried to calm her she became vicious, talking about money and saying bitchy things about DH in particular. This was unwarranted as he has always been kind to her.
She hasn't spoken to me since that conversation. At the root of this is her jealousy that I have met someone and we live a pleasant life.
I'm going to leave DD to settle for now. My question is: what do I do about this in the longer term?