It seems that we are in the same boat I have a son who has never appreciated any efforts made by us his parents I don’t grieve over it one needs to move on it’s always for the best to accept people even the near and dear ones as they are wish them well but focus on yourself and your husband or on relatives who care for you if you were not included in her funeral it’s okay just pray for her but to take it personally will just depress you further if your son doesn’t care about you it shouldn’t matter you did your best if that is not good enough for him you are not at fault in my opinion you need to focus on your own self