Maine Honeymoon

My Fiancée and I are looking to honeymoon in Maine and are looking for any advice.

We are thinking Bar Harbor, as it seems popular and has Acadia NP. But it also does not seem like there is a lot to do outside of that. Would 5/6 days be too long to stay in Bar Harbor? Would it be better to break it up to say 3 days there and 2/3 days somewhere else like Portland?

In Bar Harbor what would be great places for a honeymooning couple to stay?

What are the best restaurants?

What are the best things to do?

If we were to split up the trip what is the best places to stay in Portland or elsewhere?

Restaurants there?

Things to do?

Any help and advice is greatly appreciated. Thanks in advance.