What would you say if I told you I'm embarrassed to go to the restaurants with my fiance?
I feel bad for your fiance, is there a problem with him?
I don't want him to spend more money on me, people might think I'm a golddigger.
I wouldn't worry about that and enjoy your time with him. That's not the time to worry about money.
I'm going to continue to keep it to myself since I feel it is my responsibility.
Honestly you shouldn't feel bad about your fiance wanting to spend money on you. It's another way to show affection and he just wants you both have a good time. I would take some time to think about this and try to think of it as a good thing.