(sorry for unoriginality...still a bit out of it)
I can completely understand being out of it. I'm recovering from an illness myself right now xD
1 - It depends on whether we're talking Yugo/Rin or Yuya/Yuzu (because I can't actually decide which one is my OTP). For Yuya/Yuzu, it was probably Yuzu vs Chojiro (because I started watching the show from episode 54, so that was my first big fruitshipping moment). For Yugo/Rin, it was love at first sight - the way he fanboys over Rin when Yuzu assumes she's his girlfriend!
5 - Pick a scene, any scene! Probably the biggest one is Shay nuking Dennis with "Raidraptor - Satellite Cannon Falcon", though any ship moment is also a top contender.
9 - A ton of them. Yuya and Yugo, Yugo and Sylvio, Shay and Sora (after season 1)... I could go on!
9 - Happily married several years post-canon, probably a few kids, both of them are working as performers (Yuya is basically a circus clown/performing magician, Yuzu is an opera singer). They also have all the cats and dogs.
10 - It goes off the charts very, very easily. These two pine after each other so hard, it's almost painful (in a good way!). 12/10.
6 - Probably his duel against Celina in the Friendship Cup. Either that or the time he ramped off a building in season 1.
8 - He will eat anything that is even remotely edible. He doesn't have any specific food preferences - growing up in the Commons, he had to fight for every scrap, so he just appreciates the very existence of food. (Also, he has an appetite that rivals even Yuya's.)