Hi OP,
Thank you for being so honest. It all sounds very familiar, I grew up as the kid, you see.
Don't worry, his kids will know you don't like them. I'm sure they don't turn up to spite you, they're just there to spend some time with their dad.
I know it's annoying, with the daughter glued to his side, she probably IS jealous - you get to spend 7 days a week with him, she doesn't. She didn't ask for this, and she's probably hurting more than you'll ever know.
You do realise the DC will be grown and out of the way in just a few years, and you'll have all those precious evenings to do whatever you want? Just keep counting down the weeks/months/years... it'll happen.
There really is hope, you know. My DStepMum really upped her game as the years went by... I moved abroad, but even just occasional phonecalls would annoy her. DDad used to call me when she was out, whether to talk undisturbed, not annoy her, or to hide the fact that we kept in touch... Still, she complained about the phonebills enough, he stopped that too.
Anyway, fastforward a few years. I moved back to the same country, but a few hours away. We see each other a couple of times a year, over a weekend. Call perhaps once every 2-3 months. I seem to have been written out of the will, so once he's gone I won't have any claim to the family holiday home.
Just give it time OP. He'll be all yours before you know it.
I can't help but wonder if he'll be a bit heartbroken, deep down - or just relieved to finally have some peace and quiet. Maybe you won't be able to stop yourself from wondering the same?
I hope your DStepKids have someone in their lives who loves them, who's happy to see them, who wants to spend time with them. Maybe, if you haven't broken them totally, they'll have families of their own one day.
Be warned - they might try to rekindle the relationship with their Dad if they have children. Keep up your good work though, make them feel as unwelcome as ever, throw a strop if he makes too much of a fuss over the grandkids... Soon enough, they'll choose to not put their own DC in a position where they feel unwanted. You know, because they know how it feels, and seeing their own DC confused or sad will put a stop to it.
You'll get there, if you keep at it hard enough. Seriously, I'm living proof. DStepmum "won" - she got what she wanted.
Maybe he resents her a bit, deep down, for alienating me. Maybe he's just happy I don't hang around and pine like I used to.
Maybe, if you really love him, you'll worry about ghe resentment and regret creeping into his heart?
My DStepmum is one of the most miserable people I know, even without me in her life. Me? Yeah, as you can tell... A bit bitter, sure... I definitely have issues, mainly due to my childhood...
But on the whole, I'm quite happy with my life. That seems to annoy her more than anything, so it keeps me motivated in my personal "pursuit of happiness".
HTH,