Complicated feelings

So I’ve been friends with this guy for years but had to cut him off due to my ex when him and I were together. And when me and my ex broke up I instantly got back in contact with my best friend. And over the last few months I have slowly caught feelings pretty hard. And I get a lot of mixed signals. Like we will cuddle and he will always be facing me or have his leg on my or be near me or having contact with me in some sort of way but then he will pull back and get distant. And when we snapchat he never shows his face but he doesn’t for anybody or so he says. And I don’t want to be pushy and scare my best friend away. Any advise?