Bruce totally gets it. He sees the passionate side of a persons hobbies/interests like I do. I have known people with interests that were not mine but it is so true. When you truly care about someone their differences dont matter to you. Thats all you need to know and you already know that. We sometimes need to learn some self control in that dept. For instance. I love my snakes and talk about snakes any chance I get. If im hanging out with someone who really couldnt care less about snakes then I just keep it short and sweet and then move on to something else. I pick up on peoples reactions and adjust accordingly but my friends who do not like snakes would never shun me for it. They accept it and it makes them happy to see me happy.
Its all about acceptance. You know whats up, you just didnt want to admit it because he was your don jaun in the beginning. I see you as being the type to not fight about it but instead, just gracefully bow out. If thats wha happens his loss will be your gain.