Because It's Intriguing: Baron Humbert von Gikkingen x Haru Yoshioka from The Cat Returns.

Because It's Hot and Sexy: Shadow The Hedgehog x Rouge The Bat from Sonic The Hedgehog.

Because It's Reasonable: Monkey Ken Khan x Sally Acorn from Sonic The Hedgehog.

Because They Protect One Another: Nick Wilde x Judy Hopps from Zootopia.

Because They Share Beliefs: Yoshi x Birdo from Super Mario Bros.

Because Of Subtext: Ash Ketchum x Misty from Pokémon.

Because It's Adorable: Charmy Bee x Cream The Rabbit from Sonic The Hedgehog.

Because It's Realistic: Nothing.

Because They're Alike: Beast Boy x Terra from Teen Titans (no Teen Titans Go!)

Because They're Opposites: Disco Bear x Pop / Flippy x Flaky from Happy Tree Friends.

Because It's Canon: Miles "Tails" Prowe x Cosmo The Seedrian / Vector The Crocodile x Vanilla The Rabbit from Sonic The Hedgehog.

Because It's Non-Canon: Toffee x Moon Butterfly from Star Vs. Evil Force.

Because It's Charming: Knuckles The Echidna x Tikal The Echidna from Sonic The Hedgehog.

Because It's Crack: Jack Savage x Judy Hopps from Zootopia.

Because It's Hilarious: Nick Wilde x Jack Savage from Zootopia.

Because It's Tranquile: Haida x Retsuko from Aggretsuko.

Because It's Full Of Emotions: Darien Chiba x Serena Tsukino from Sailor Moon (only in 90's anime)

Because It's Unique: Lucario x Krystal from Pokémon and Star Fox respectively.

Because It's Cheesy In A Good Way: Nothing.

Because It Happened At The Right Time: Simba x Nala from The Lion King.

Because They Work Best When Together: Cuddles x Giggles / Handy x Petunia from Happy Tree Friends.

Because It has Great Potential: Sonic The Hedgehog x Amy Rose from Sonic The Hedgehog / Ookami x Fenneko from Aggretsuko.

Beause It Makes The Series Better: Shaoran Li x Sakura Kinomoto from Sakura Card Captors and Sakura Clear Card.

Because They Have No-One Else To Love: Manumaru x Resasuke from Aggretsuko.

Because Of Fan-Art And/Or Fan-Fiction: Espio The Chameleon x Sonia The Hedgehog / Manic The Hedgehog x Mina Mongoose from Sonic The Hedgehog.

Because Not Enough People Support It: Fox McCloud x Katt Monroe / Falco Lombardi x Krystal from Star Fox.

Because Of Their Conversations: Alister Azimuth x Ratchet from Ratchet & Clank.

Because It Brings Out Their Best Qualities: Anubis "Doggie" Cruger x Kat Manx from Power Rangers S.P.D.

Because They Forgive One Another: Mirmo x Rirumu from Mirmo Zibang.

Because I Can!: Sneaky x Mouse Ka-Boom from Ka-Pow / Falco Lombardi x Fox McCloud from Star Fox.