@Betterlookinglover Is there a chance that you have not really explained your feelings to your DH? Have you sat down and said you are thinking of divorce?
The reason I'm asking is because you aren't saying much here.
Posters are asking lots of questions and you seem to be finding it a hard to answer. You aren't communicating much to posters who want to help, which makes me wonder if it's the same at home.
Nagging someone and telling them you want to do stuff (travel or whatever) is not the same as having a really open heart to heart discussion about how you feel and where the marriage is going.
There also seems to be some kind of 'contradiction' going on.
Your user name suggests it's what your DH will find (based on what you have said.) OR what you want!
And you have said in your posts that he will 'find someone better'.
What's behind this? Do you lack confidence and have a low opinion of yourself?
Have you got the means to support yourself after a divorce?
Do you work now or would you need to work?
Unless you are wealthy as a couple, the likelihood is you would as a single woman (in your 50s?) be working.
Have you seen a solicitor about the financial side?
My opinion is your marriage is in the doldrums which is really common for midlife relationships.
You've got a lot of work to do before chucking in the towel. Counselling for yourself is the start, to see how you really feel.
And you need to be very realistic about how your life might be as a single woman in your 50s. There may be no other man, ever. You may be on your own. You may struggle with money. Your children may turn against you if your upset the family unit.
Of course NONE of this might be the case but the question is have you considered these as possibilities?