If, therefore, any be unhappy, let him remember that he is unhappy by reason of himself alone
That quote is quite deep and IMHO applies to near every situation in life. If you are unhappy with your present relationship then it’s YOUR decision to remain unhappy, or your decision to implement some change that could move you to a better place.
The key might be realizing that the move from unhappy to happiness can be gradual. With complex life issue the solution isn’t always clear nor easily attainable.
By suggesting you don’t settle on being unhappy with him and the relationship does not automatically require you file for divorce. But it does require that you request OR make a change, and if that request or change is implemented, that you feel like you are at a better place. If unhappiness could be graded you went from level 10 unhappiness to level 9. It’s progress, but not a destination.
That change can move you closer to divorce, or it might move you further. It’s all an issue of being clear on what you want, what needs to be done to progress there and being brutally self-honest in evaluating progress – or lack of.
Understanding divorce can be compared to understanding your dentist and the need to go get an extraction despite the pain it might include. It’s not what you want, it’s not your first action if you have a tooth-ache… but it’s something you might have to do if all else fails.
I don’t advocate a tactic of openly discussing divorce. That is – I don’t think you can get results with statements like "You have three days to find an IC or I’m filing for divorce". You can’t have a real relationship tied together by threats. But his inaction in doing what was agreed on is an indicator to commitment, and that in turn should give you reason to evaluate how YOU might get from pain 9 to 8 on your journey to 0.
My suggestion for a frank talk is more aimed at both of you understanding what the other needs and wants and finding out if there is common ground. If there is common ground then being clear on what needs to be done to get there, step-by-step.
Like… if you and husband/partner decide that financial clarity is required, and you decide to open up each others accounts for scrutiny, then if he hasn’t done that within 10 days his actions are telling you that he isn’t following through… At that point threatening divorce doesn’t make sense, but it would make sense to have another discussion where you question the commitment – reminding him that he has options and that an agreement to divorce is one of them. It’s an option open for him as well as you. If he doesn’t agree with what you thought were common ground then it might require a further sit-down to decide if you two are compatible or not.
Divorce isn’t a threat – it’s more a consequence because you aren’t reaching the goals you thought you both agreed to, or you two don’t have common goals. It’s a progression led from a journey of trying to get from one place of unhappiness to somewhere slightly better.
I think maybe the worst situation you can be in is where you think you don’t have options. By realizing D is there… you always have an out. All that’s left is evaluating what you are being offered and if you personally have the ability and time to wait for the result you want.