My lovely stepdaughter had a baby in 2014 and she and our now SIL had a romantic destination wedding in 2016. Heartbreakingly she developed bowel cancer and died in 2019. Our SIL has been very active on Facebook since then with lots of posts about his broken heart, missing mummy on mother's day etc. We don't live close and only go up to see him and our granddaughter a couple of times a year, but we try to keep a good and open relationship with him for our granddaughter's sake. We found out just after Christmas, via a Facebook post, that he is in another relationship and we found out last week that it was the anniversary of that relationship, so it has been going on for over a year. I fully believe that he should be able to move on and that he is entitled to be happy, but we do wish that it hasn't been hidden from us for so long. It also seems strange that he continues to post broken-hearted messages about his wife, whilst also posting loved up photos of him with his girlfriend. We are also somewhat concerned that we will lose touch with our granddaughter now she seems to have a new family.
My DH is finding it particularly difficult and I am not sure how to navigate this whole situation. It was hard enough for him to lose his daughter without the prospect of losing his granddaughter too.
At present all contact with them is initiated by me, and that is how it has always been. We send Easter eggs, birthday presents and Christmas presents and go up to see them and other members of the family a couple of times a year. In previous years they have popped in to see us on their way to holiday in Cornwall, but I had to cancel that visit last year as I was seriously ill after having a bad reaction to cancer treatment. They have already had a holiday in Cornwall this year, all of them, but no suggestion that they would see us this time.
Does anyone have any suggestions as to how to go forward from here? Shall I just carry on as before, or is there anything else I could do?