What does it mean when a guy tells you you are a nice girl and a wonderful person?

I really like this guy who is 2 years younger than me and does not have a lot of experience when it comes to girls. I asked him to be my date to a banquet and he excepted, we had a great time. I thought he was clueless as to my feelings for him so tonight I told him that I really liked him. He said back and said that I was a really nice girl and a wonderful person. What does it mean?