[¯|_(ツ)_|¯]

I think communication is the best thing here. We may tell you that he likes you as more than a friend and be completely wrong about it. It's hard to assume something like this because then someone ends up hurt in the end. Weigh the pros and cons and consider telling him that you want to be something more. One pro of course is that it could possibly lead to you entering a relationship, but a con is that it may affect the friendship if he doesn't feel the same way. You can sit him down somewhere private when he is in a decent mood and let him know that there has been some confusion between the two of you lately and you'd like to try giving dating a try. But, also consider what he said when you talked about the misunderstanding before. If he explicitly stated he doesn't have the same feelings as you I wouldn't try pressuring him too much.