When Oikawa finds out about the marriage he flips his shit. He’s angry and irritated and okay, maybe a bit over-dramatic too but who can blame him, really.
First thing he does is go to Iwaizumi and he talk his ear off. In the end he more or less realises he doesn’t have much of a choice and kind of accepts to whole ordeal. However one thing he decides for sure is that he won’t, under any circumstances, like his future spouse. Nope. Not a chance.
Except then they meet and the guy’s actually adorable?? When Oikawa first approaches him he expects a personality to match his grumpy face but no, he’s just very, very awkward (and very very cute). And when Oikawa teases him he gets this endearing look on his face and the tips of his ears turn red and that pout! … Okay so Oikawa’s plan not to like him is more or less ruined.
Iwaizumi wonders why he even tolerates Oikawa and considers finding a new best friend when Oikawa won’t stop going on about he doesn’t like Kageyama, no, not at all, even though admittedly that thing he does with his nose when he’s frustrated is very cute and he’s actually really handsome, y’know? Also, have you seen him when he’s concentrating on something?? Somehow complaining about Kageyema turns into fawning over him and really, Iwaizumi need new friends.
Eventually Oikawa admits to himself he likes Kageyama (just a bit though! a little tiny bit!) but of course he still has to play it cool in front of him. Should be easy enough, right?
Yeah, no. Oikawa’s version of ‘playing cool’ is showing as little fondness as possible by pretty much saying the opposite of what he thinks. “You don’t look cute at all, Tobio-chan!”, “Hmph, it’s not like that was adorable…” and “I’m not impressed.” are just a few of his ‘brilliant comments’ that confuse the hell out of smol blueberry Kags
Even though he’s ‘playing it cool’ Oikawa still hopes Kageyama will get the hint and make a move or something (preferably before the wedding). But as weeks pass and Kageyama still doesn’t get it he decides to step up his game.
A lot of bad pick-up lines later, he’s about to lose it. Kageyama, bless his soul, is the most oblivious person in the world. Oikawa cries.
The day before the wedding Kageyama asks to talk to him in private and ends up confessing. Oikawa almost strangles him because how dare he?? He spent the last weeks shamelessly flirting with him and even went as far as buy him flowers (which, by the way, Kageyama accepted with a ‘thank you, Oikawa-san, I’ll make sure they get to my mother safely’) and he has the audacity to say stuff like ‘I understand if you don’t return my feelings’?? Also, on the day before their wedding?! Really?! (But actually he’s very very happy, not that he’d ever say it out loud.)
During the ceremony the next day Tooru is once again reminded how lucky he is because damn, does Tobio look good in a suit!
He doesn’t tear up, no matter what Iwaizumi says. No really, he doesn’t! Honest!
(He does but it’s okay because so does Tobio.)
Thanks for the ask, Anon, I had so much fun writing this^^
Send me an AU and I’ll give you 5+ headcanons about it
