What makes you think he is not grateful and they are not his top priority?
You have heard very little info about the situation to judge. Infact there is pretty much no info given. The original poster herself has been contradicting in her post (1 minute acting as if she has a problem with him going out, and the next stating she dosn't have an issue and would prefer to stay home with the kids anyway) so how can you possibly make such a suggestion without knowing 1st hand what the facts are? All you have heard is he plans to go out on NYE with his brother. As far as I can see he is not owned, and neither of them had any previous plans made for the night.
1st of all, has the poster discussed the matter at hand with him?
And if so why if it dosn't bother her? (sounds hypocritical to me)
And if not, then how is he meant to know any better?
(is she upset or not? who knows other than herself)
Do they go out alone often?
Never? sometimes?
Has he/she cheated, lied, run away, joined a circus etc in the past?
All those things that may be contributing factors we do not know of.
There is alot more details left out so of course opinions are going to be biased.
but not being grateful? wow, you can tell that by reading a 5 paragraph sentence from a complete stranger over the internet who is/isn't well maybe/maybe not upset. I am amazed. Why do 4 years at tafe to study psychology when you can easily pick it up at home on APS.