Confused asf... Boyfriend, bestfriend, help

Okay... So I'm in a relationship with a guy, and my friend Cody is like my big brother, and we've know eachother for almost 7 years, he's a great guy, and me and my current boyfriend don't have the same connection me and Cody have, and I think I'm starting to catch feelings for him. Ugh I don't know what to do