<human>: We've known each other since elementary, and I've never really expressed myself in the ways I feel would be necessary to give him some sort of understanding. I've been saying I'd like to speak to him about something lately, when the time came, I'd just back out, believing its the wrong moment. He's been going out with a girl for about 7 months now, and it's eating at me everyday. It's definitely something that's on my mind daily, and seems to have been for many years(healthy mental lifestyle, I know.) We've became really close within the last 3 years. I feel that he's the only one I'll ever have true happiness with. He's told me he's considered if he was bi before, but came to the conclusion it wasn't him. Is this where I should give up? He's always been there for me and has told me that he's loved me before, though I suspect it was more so of brotherly nature. He's told me that I shouldn't be afraid of telling him anything but my gut instincts tell me to still keep it a secret.. This is going on too long, and he now finds my secretive nature quite irritating. I feel I need to man up and finally tell him, despite him already being in a relationship.

Can you condense the text into three sentences or less?
<bot>: In love with best friend since elementary, been eating away the last 3 years, but don't want to compromise friendship/worried it's the wrong time to tell him.