I notice a lot of Solangelo in fanfics becomes real by, for example: 

"Will secretly had a crush on Nico. Will's going to do something really romantic to ask Nico out. Nico says yes and kisses him."

or

"Nico thought he might have a crush on Will. No, wait, he does. Will does something romantic, Nico kisses him everyone is happy."

-_-

If you ask me, it probably went something like this (btw it's not going to be very detailed. It's gonna be the writing style for up above.):

Will liked Nico. Will wanted to ask Nico out. Will goes to Jason and Percy for help "Hey guys, I really like Nico, but I don't know if he likes me. I want to ask him out, but I don't want him to hate me," 

"Whoa, dude. Calm down. It's cool. He's totally gay so you go on and ask him," Jason said. Will thanked them. Will ran to Nico.

"Hey man, do you wanna go out on a date with me sometime?"

"Really? Sure, yeah okay,"

BOOM.

I could have maybe done a little more detail, but oh well. I imagine it'd be like that. Don't get me wrong, I LOVELOVELOVELOVELOVELOVE the fanfics everybody writes, they're so good. But if it's going to be realistic, it'd probably be something like that. KEEP WRITING AWESOME FANFICS!!! :D