I'd just say. "Sorry you didn't want me around before so why do you want me around now. Its not the replacement kids fault but yours... so its going to be very awkward that you didn't want me as part of your life when I needed you and I don't need you now." I'm harsh but I don't think thats ok. Your mother shouldn't have allowed that to happen to you. They are not good people.
You sound like an entitled brat. So your mom's new husband did want to take care of her adult daughter who has a child? Is that right? So you're pissed off about that? Time to start adulting. Sounds to me like you owe your mother and her husband an apology.
no.her mom allowed a man to make her dd feel uncomfortable around her own mom-and mom did nothing..id just say-happy birthday and leave it at that..moms dh treated her dd badly so fuck him..op will never be close to the kids because of this..
Quoting Anonymous 3:
Go. It's water under the bridge & time to put the past behind you.