I work in a company where I've come across several of the "trailing spouse" species. 5 years she had of that. Do you have any idea how hard it is to work in a foreign country where you might not speak the language - and might not even have a work permit? Oh and as a couple you may have decided a SAHP is especially important because of the big disruption to the kids?
Our trailing spouses can struggle to find work themselves because of language issues, work permits, local companies wanting to employ only locals, difficult childcare (it's common in some countries to be expected to take your child home for lunch), confidence issues abroad, reluctance to employ people who are going to get yanked over to another posting with their husband soon enough... Add to that, the same issue in the UK: I could work but it would cost us more in childcare.
Do not underestimate how him moving them abroad put a 5 year hole in her potential earning and developing years! (then thr difficulty of finding work in the UK after the gap... etc)
It does sound like she got a lot.
But it's unfair to say why should she have spousal when one child is at uni, and one moving in with you. That is not what spousal is for.
You also say upthread it was a 50:50 split. But now you say he was allowed to ring fence some family money and an inheritance. So it wasn't 50:50.
You haven't said whether that 50:50 means that she got 50% of the value of the pension in the amount of house / lumpsum. Or do you mean that 50% of his pension was taken via PSO and put in her name, as a pension?
If the latter, then sounds like she got a good (though not necessarily unfair to him) deal.
If the former and this £1.8m house and spousal maintenance is her pension, then it's really not such an amazing deal.
Bottom line for me: whether you and he agree with the way the court looks at settlement, it was a fact when he got married. In fact, divorce settlements some say here has become less favourable. So, when he chose to marry and have kids, he knew what he was getting into.
I'm about to go into a second marriage. Neither of us thinks 50/50 is fair in our circumstances. So we have agreed to see a solicitor about a pre-nup.
Your husband went into a contract knowing the terms of it. With all his wordky goods he her endowed. If I were him, yeah I'd be pissed off! But... It's not unfair, he chose this.