Fiance is extremely GREEDY

Both of us work and both of us have stable ... average incomes. We've never struggled with paying bills, both of us own properties, can afford to go on a holiday etc. I feel extremely lucky and greatfull of our mutual (financial) life, I am happy now and wouldn't ask for anything more in the future (nice if we have more, but completely fine if we don't). He on the other hand is overly ambitious. Nothing is ever enough. I've realized that his ambition is practically greed at this point.

He is never happy with our finances, even though we save a lot of our incomes. He wouldn't just go on a regular holiday, so we end up NOT going on holidays. He would prefer to go on a luxury holiday (think Maldives, Bali 5 star resorts), so because we can't afford that kind of luxury we end up doing nothing. He would rather buy me diamond jewelry but because he can't afford it, he ends up buying me NOTHING. It is starting to make me feel bad. We don't go out to eat, we don't go on fun date nights. Because he thinks the only way he can enjoy something is if was the very best. No cinema at all - because he can't afford to pay a theatre for a private screening, God forbid we end up watching a movie with other people. No regular holiday - because that's no fun.

At this point we honestly have enough money for a decent life, as I said we also save a lot of our incomes, so we have decent savings on the side. But he thinks our life is garbage, he started to overwork himself - 16 hour shifts (2 jobs), the second is his own business which he works for at home.

When we first started dating (senior year of college) around 4 years ago money was tight. I was happy then, but supported him for a better life because I thought that once we had a decent life things will be normal for him. Now it's the same. I feel like once he reaches a million, he wouldn't be happy unless he reaches a billion.

He'll often times neglect me because of his "ambitions". I don't know what to do anymore. Our sex life vanished completely because he is unable to relax because he always stresses over having not enough money.