Me again.......I sometimes get frustrated at posters who keep on and on telling an OP to take a certain course of action (ok I know the OP obviously opens up the debate) especially when the OP has stopped posting.
The problem with these open forums is that we know so little about the r/ship, the dynamics of it, the cause of conflict, the way it's handled, who is the dominant partner etc etc etc.
It's just not that easy to "get tough" or "stick to your guns" - dynamics between a couple get built up over time and then they tend to get set in concrete. Very often one partner will give in to the other for a variety of reasons, far too numerous to go into here. Yes the sulking is passive aggressive behaviour and it sounds like it could be learned behaviour, but we all learn behaviour, mostly from our parents, and we carry what we learned as kids into our adult life. I'm not excusing the sulker but as humans we employ a whole range of behaviours in a relationship, some conscious and some unconscious.
I am convinced this isn't a MIL issue - it's an issue between the OP and her DH, though I suspect the OP felt it easier to post about the MIL and I'm sure she is rightly pissed off with her - she sounds horrendous.
As nevergrowingup says - it took her years to stand up to this kind of behaviour, and the longer the relationship continues the more entrenched the dynamics become, and the more and more difficult it is to change. I often think relationships are like a play - we play our respective roles (mostly unconsciously) and both players have well rehearsed "lines" and are word perfect - also I think they both have a good idea how Act 1 - Scene 1 will end. The OP gave us a perfect example of the ending of Act 1 - Scene 1 - what we don't know (and they do) is what happened in Act 1 - Scene 2, and as for the finale - GOKs!
I don't mean to cause any offence here but all you ladies advocating "take him at his word" "stand up to him" "get touch" etc - I can't help wondering about the dynamics of your own r/ships - can you honestly say that you "put up" with things that annoy you for whatever reason? I very much doubt it - or the boot could be on the other foot "does your DH put up with your behaviour for whatever reason..." Sorry this is getting very clumsy - it's late and I'm tired.
The thing that a lot of us forget if that A can't change B's behaviour but A can change their behaviour towards B and this will bring about change - not necessarily for the better, but it will change the dynamic.
Or put more simply "If you do what you've always done, you'll get what you've always got." Easy peasy - yeah right - if only! The breakdown on marriages/partnerships is nudging 50% - food for thought?
OP I'm sorry if I'm making assumptions about you - I don't mean to - I'm just a bit tired (not only on this thread) of people just trotting out the usual lines..........maybe I'm too old for MN!