Dude, I know.
I'm infatuated with someone I've known since I was a kid. He is in his 3rd marriage (quite a bit older than me) to someone who...doesn't love him as well as I could.
I've known him longer than his wife. Even though he's the older, more established one, I feel like I could love him better than anyone. Which sounds vague and arsey, but it would take too long to explain. Let me just say that I get him because I've known him and loved him from a distance for years.
I want to make him happy. He makes me happy. There's no way this is anything but wrong, though, right? BTW, I've done nothing. I'm not impulsive and I'm mortified at the thought of ruining someone's life. But I'm terribly preoccupied by what I sense is a door left ajar by him. For me.