When is it a good date?

Okay so 2 months back I met a girl through a common friend. After meeting her couple of times, one evening at a party (after I got drunk) I told her I like her. Damn!! She said shes not sure about it and doesn't like me the same way. I confronted her the next day and told her even I didn't mean to freak her, alcohol played a game and i ended up saying it to early but I am fond of her. I left for home for 1 month but we stayed in touch via long emails.
We met up yesterday to hang out and have few drinks, sat by the river Thames and drank a bottle of wine and talked and discussed life, all went really well till we moved into a pub and ended up talking about our past relationships, a bit too much and how they screwed us. By the end of the evening we take a walk to the tube station, and we don't even kiss goodbye but hugged each other. I am super confused. Am I ending in a friends circle?

Please help girls!!! :(