I adored my ex DIL we were best friends we were loving grandparents to her two children from a previous relationship, our son behaved badly so we 100% supported her, when he remarried her oldest daughter aged 24 started to distance herself from us as she couldn't understand how we could have contact with his new wife , but we saw her mother all the time, she met a new man we were so happy for her, but it soon became obvious he didn't want us around and I understood this so we stopped visiting the house to see our youngest DGD who at now 17 we have a wonderful relationship with.....as our exDIL prepared for their wedding, I noticed we didn't have as much contact, her son who we had always been Nanny and Grandad to was in the Caribbean serving with the Royal Navy, he would call us from abroad he was a wonderful grandson but when he came home he cut us dead along with our exDIL ,she won't even speak to me about our DG ,that was a year ago , in my 64 yrs I have never been so hurt by anybody I was devastated, it has left me bitter and I trust nobody, my advice to you is to back away, stay friendly for your DGC unfortunately your exDIL has a new life , don't let them hurt you the way I have been hurt