I know exactly what chin lipo you are talking about, i want to do the same! My cousin got it a couple of years ago and it looks amazing lol. But I’m sorry your husband is being unreasonable. Perhaps he’s using this as an excuse but it’s stemming from somewhere else? Counting down the months until you two get divorced is not normal, it seems like he is using the chin lipo and other issues as an excuse for divorce. Like anything will result in a divorce. Maybe he’s already been considering it for some time but using these “issues” as an excuse to actually get the divorce without putting the blame on himself? You should definitely have a deep conversation with him about this
Do what makes you feel confident in your body. Maybe try to talk to him more about seeing why he's so against it??