🙁 to.... You can spot the first wives brigade a mile off on this thread with their clear hatred for step mothers
Hey!!! I'm a first wife! Whilst that might be the case for some MN PPs, it's absolutely NOT the case for many of us!! And I'm a (court ordered) RP to my DCs, as my DC's dad is somewhat tricksie such that court didn't like his view of caring for children . (We are past that but still their dad rarely turns up for his court ordered contact, but he could have EOW. And holidays... And DCs dad hasn't always behaved well)
Regardless.... And this is important..... I wouldn't dream of eating into his (Dad's) contact time with DCs. I'd be SO very grateful that he had a stable SM who welcomed DC, an interested Dad, who were taking him out and to spend quality time with wider family regularly including cousin's and paternal grandma, on Dad's side. Especially as at age 5, DS enjoys it. (Slightly different if DS was 15 and kicking up a fuss but then that's for teen DS to negotiate with his Dad in his contact time).
Even if 5yo DS found it boring, it wouldn't be MY business as that's DS's dad's contact time to parent & plan activities how he sees fit. Dad decides how they spend their time together.
It sounds lovely OP and I wish you were my exDH's new wife/family. 🥰
There's a difference between sending a link occasionally saying, "hey, DS is really into Star wars/car shows and btw there's an event near you, here's the link if you are interested", and what she is saying that "DS must go to this random thing I have chosen and I'll send DS's maternal granddad to remove him from your contact so DS goes where I dictate, if you aren't taking him because I insist I get to over ride your already fabulous plans on your contact time" That's VERY controlling. She chooses her time, he chooses his time. That's parenting, they are not together because they differ.
I love your family tradition, DS will benefit from it and it works out well for everyone, installing close family values that your DH has grown up with.
DH should and is rightly ignoring her. She's batshit.
I hope you listen to other advice in this thread about taking him back to court for increased contact, maybe a tea time/overnight in week of weekends he doesn't have him. It'll just be one off cost of court fees if DH does it all himself without solicitors.