I don’t know about all of this really. MN seems very upset about adult children who have a close relationship with their parents, especially if it’s men and their mum.
My DM used to visit her parents every morning Mon-Fri. She’d go out with my Nan on errands and then Nan would make mum toast and coffee while she chatted to granddad.
Is that also inappropriate and “emeshed”?! Or is it ok because my mum is female?
I just don’t see an issue. Some families are closer than others and that’s ok.
I can understand women whose whole identity was “mum” struggling to let go a bit even as adults, and I can see how continuing to make food is an act of love. Because that’s how we’re taught to nurture isn’t it? It’s a form of societal conditioning that feels comforting and loving.
I think the problem comes when either the MIL resents the DIL and makes jibes, or else the DIL misinterprets comments and takes them as a dig. We don’t know which one applies here.
However the OP admits to “wanting to be bitchy” and comes across as quite combative, imo. I’d be willing to believe that the MIL is just demonstrative and close to her DS, and DIL bristles at what she sees as unwanted “help”.
I have dealt with someone before who was determined to try and point score and prove their relationship was closer/better/more intimate. This wasn’t a MIL/DP situation though. I dealt with it by refusing to engage. I was confident and secure about my relationship with the individual and I felt no need to engage in a power struggle with someone else. So every time they made a comment, I chose to interpret it as if it were genuine and I refused to get drawn in to try and “win”. Best decision I ever made. The stupid comments reduced and I just didn’t give it any head space. No need.
OP. If you’re not happy with the amount of time your DH spends with his DM, you need to have a talk. It sounds as if that’s the issue here really rather than your MIL making lunch - and it may be that you and DH have different opinions on what a healthy family dynamic looks like. I don’t believe there’s a wrong answer but if you’re very different better to solve it now before you even consider DC. Things will become even more heightened then so you need to sort this out now properly rather than just spiteful sniping.