My husband had 3 kids when I met him and later we had a daughter together, we got custody of 3 sk when our child was 3 and that is when the real nightmare begun. more on that later.
Fast forwarding.....
SD turn 17 left home and at 20 went to live with Bio mom got pregnant and had child, would call DH Pawpaw and put him on video chat with GB and for 2 years I was never interduced into GB life and I was not even given a grandmothers name, SD moves back here, I bought her everything she needed for her new appartment down to cleaners, shower curtains, everything in the kitchen and around this time my grandma name is discussed and she chose Mawmaw but everytime they came over SD would walk right past me and put GB in DH arms, I was invisable when it came to GB until DH would say "here go to Mawmaw" and GB and I would get a snack and chat a little but SD would start punishing us by not bringing GB over like when I chose not to be a permenent babysitter for a child who is 1/2 blk and is taught the N-word, she hits you in your face and cusses, i was not going to be out in public and her say "N" word which SD finds funny, let her be in her moms basket and say it when a person walks by, I am a nice person and I dont want to be in that kind of predictiment. The very few times we went to SD home she always had a friend over or a man running out the door and into truck before we got there, which was funny as heck to watch from the parking spot in front of her door, even though we called first. so we felt like we were invading her space and just let her come to our home because she was only about 5 minutes away, SD came over one day showed dad a tatoo she covered with a black rose and DH said he didnt like it, and SD got mad and it has been almost a year now that we have not seen Gbaby. DH said it is her child and her choice. my oldest SS only calls for drama and a handouts when in town and does not tell us until the last day when he stops by for 20 minutes, long enough to get B-day money or Christmas money, otherwise the line is silent. the 2 oldest has a relationship with their mom and are happy to her face and stab her in the back to others. 

Our DD is now pregnant and getting married so I only told my father as my mother passed away (respect) and my youngest SS who calls and comes over that I raised from age 7 to 18 without his mom ever seeing him we are his family by heart and deed and he has Bio mom on his FB even though he does not talk to her because he has no bond after 15 years of her raising another mans 5 kids and not seeing her own Bio children.
I announced DD news on FB because when there is so many people to tell then you announce it on FB because its better than a telephone. SD is crying and calling Drama brother and made a snide comment on my post about me and my husband as Gparents on my post congradulating our daughter "I hope they have more to do with yours than mine" she's mad because I did not name her daughter as being the 1st grand.

"Surprise and congratulations to our daughter Ann and James on their up coming marriage and pregnancy, Mike and I are going to be G-parents "Nonna and PaPa" and we are welcoming our soon to be son in-law into our family who we love and respect, Congratulations to you both." 

It was about our daughter and their happiness and nothing else. the "Again" was missing after grandparents not intentional  because right after was our GParent names that differed from names SD gave us for GB. DD is our daughter together, as this will be our grandchild together. just like my DH and his ex have children and a grandchild together, I was never allowed to be a grandmother to SD child and this is our 1st grandchild together and all  DH kids are 22,25,27 boy girl boy. only SD has a child. 
I feel like I gave 19 years of my life to do for them, at points they abused our DD, I was never allowed to be a mom to my one and only child because I had to be mom to everyone, everything had to be equal, life with them was love, lies, hate, mean and nasty, as in poop hidden in places to make our house stink, for 10 years non stop. Im tired and I am detatching because I want out of the "you owe us because you married our dad." for once I want to say "THIS IS MY LIFE!"