I think its a song about a girl and him that were always in the friend zone. They wanted to be more and tried it, it didn't work. The time they had together was great (for some reason it couldn't work). They no longer worked as friends and they didnt work as more then friends. He understood that. But he is glad that they tried. He misses their friendship and wants to see her again because he is still in love with her and this song is a way of telling her that he will always be there for her.
I think its a song about a girl and him that were always in the friend zone. They wanted to be more and tried it, it didn't work. The time they had together was great (for some reason it couldn't work). They no longer worked as friends and they didnt work as more then friends. He understood that. But he is glad that they tried. He misses their friendship and wants to see her again because he is still in love with her and this song is a way of telling her that he will always be there for her.