I'm not saying you can't be friends. It is not impossible that they are very compatible and happy. They made their choice and you can make your's. And it's being downvoted. He makes me feel like a kid in a good way.
I married my dad’s best mate!
I asked a question about a similar situation last month: Unless and until you notice abuse, it is not your place to condemn it. I see what you did there. God please don't do it. Which Desire should you choose? Lots of people do this stuff in a beautiful and fun why", encourage me to rethink it from a more open minded perspective.