Savannah:

Open – She invites John into her family’s house even if she didn’t knew him.
Curious – She’s asking about him a lot, trying to figure him out.
Past – She is asking John about him and all that stuff, but maybe it’s to try to forget herself. John asked her one time if she didn’t have any bad sides herself, and she answered a lot, but she didn’t get any further into it.
John:
Nervous – He gets nervous when he meets Savannah, for example his surfboard hits the bridge; plus he is almost about to fall when he asks Savannah to get a dinner the next day.
Past - He has a past he is trying to forget. When Savannah asks him what his past was, he is changing subject. John tells Savannah that once he was into a knife fight. The way he fights show that it isn’t the first time.
John’s father:

John – He has a little issue with his son. He once had a good relationship with John, but then his wife died, or else it was because John didn’t have the hobby with the coins any more.
Savannah – When Savannah comes into his life, he feels special in kind of a way, and that something good came in to his life. He even finds a plate, a special plate just for her. I think it may be the plate his earlier wife used.

My own opinion: I’m not into all of those love movies, so I guess that I think it suck. It is all about love, and sickness, and that is not a very good cocktail. So I would not recommend to anyone.