Really into my Best friend...

I'm really into my best friend, but I don't know how he feels about me. And I'm scared to jeopardize our friendship! He makes me so happy when I talk to him, I can't help but smile all the time. He is the biggest goofball I've ever met and he's also so sweet and kind. And he tells me how it is, which I love. Only problem is, he's my exboyfriends best friend as well... so he knows the negative things my ex has told him... and I feel that alone would turn him off from me, as well as the fact that he lives 3000 miles away from me and we have never met in person. He treats me the way he would treat a girlfriend, and he has told me so. But I don't know if that hints at anything? It's kinda hard to get in touch with him as he isn't a big texter, even to his friends where he lives, he just doesn't like to text. But he will call when he wants to talk or answer when I call. And he's genuinely concerned about me and my wellbeing. But my fear is, that I'm misinterpreting all this. Any advice?

Sorry it's long.. thank you for reading!