My male best friend and I have known each other since we were 12, and we both happen to be foreigners in the country we’re living in (I’m from Switzerland, and he’s from India). We’re super close and talk about anything and everything. My boyfriend doesn’t care about it, but he still says that my best friend is just “waiting for his turn with me.” However, he trusts me, and I’m happy, so it’s cool. I don’t think there’s anything wrong with having a best friend of the opposite gender. I also read a thread on another site about it, and opinions were mixed, so I’m curious what you think.
It’s always great to have good friends, regardless of details like gender. The more love in the world, the better. If you and your best friend have known each other since age 12, it sounds like he’s had plenty of time to tell you if he has romantic feelings for you. If he hasn’t, it sounds to me like he’s happy with the kind of relationship you have now.