Firstly....WOW...thank you all for taking the time to respond and be polite. You have all helped me a great deal and it has been really uplifting to me to actually see the various points so a genuine thank you. I think I have bottled a lot up because I have tried to not upset any apple carts!
Apologies that I am not responding to all individual posts but trying to address everything as think that is fair to the people so sorry if I miss anything...it is not intentional.
To clarify the children are 3 and 7.
I do understand grandparents are proud and want to show their grandchildren off but what I mean by parading them is more, I guess I don't know if I am using the right words but it is like she just wants to take them for the sake of creating an image to her friends. She took the eldest once around 2 years ago....rang the night before with a list of what she wanted packed in the bag....spare clothes, drinks, snacks etc...wanted a pushchair for him (we explained he walked everywhere and he no longer had one), arrived the next morning, asked my husband for the money to cover his and her entry fee to the theme park, took him out, came back late in the afternoon, explained they'd had met up with one of her friends and grandchild for coffee and she literally threw him back in the door...it was awful and just came across that she literally had just took him for the sake of having her grandchild there to satisfy her need of wanting to show she was a grandparent. He did not look like he had an enjoyable day and to this day does not ask for outings with her.
Secondly the reason MIL and stepsons mother don't talk is simply because she upset her with her opinions. It took a long time for my stepsons mother, my husband and me to all get to a really great place where we get along and actually are nice to each other. Neither my husband or me want that to change. Husband is scared of his mum upsetting his ex and in turn affecting the relationship we have managed to achieve and in turn stepsons mother has confided in me that she does not want a relationship with her. She is fine for MIL to spend time with stepson when he is in our care but does not want to have her calling her or making direct arrangements with her.
I can appreciate all your thoughts on the dropping in. I understand some people wouldn't do it and if she didn't want to then I had given her an open invite to call, text etc beforehand or simply just ring up and say 'oh I was thinking of calling past to see the kids on Friday, is that ok'.....she knows I would either say yes no problem or sorry we will be heading out but if your free xyz or xyz pop past then if you like.
There has just been nothing. On the flipside her other child who has no children....she pops down on a regular basis....even goes and collects their pet and walks it for them while they are at work, calls to see if they need anything picked up from the shops etc.
I do think she has said things to 'test' me at times but I have not retaliated and maybe I should have. I consider myself fair and even go as far as explaining my reasoning.
I am going to be having a good long chat with husband and will see how things progress. I think part of my issue is I was wondering if I was just coming across as difficult and to be honest you have all made me realise that yes, there could be things I could do to try and improve the situation but I am also not being totally unreasonable.
If she does not want to show an interest and remain distant I can accept that and I view it as her loss, however if she genuinely wants to be spending time with them, then I am prepared to work with that but she needs to be prepared to compromise with me.....time will tell and I will try to keep you updated.
Thank you again, this has really been weighing on my mind and this forum has helped so truely appreciate it.