Soneezie

Soneezie is the het ship between Sonic the Hedgehog and Breezie the Hedgehog from the Sonic the Hedgehog fandom.

Adventures of Sonic the Hedgehog
Breezie was a robot hedgehog built by Dr. Robotnik in order to distract Sonic and make him fall in love with her. The plan worked, but eventually Breezie ended up having real feelings for Sonic and she betrayed Robotnik. She left Sonic in guilt but hoped they could meet again.

Breezie continued to have feelings for Sonic for some time. When Sonic and Breezie met again, Breezie tried to rekindle their relationship, although Sonic insisted it would not work. She was so in love with Sonic that she failed to realize Robotnik Jr.'s feelings for her and that Sonic was no longer interested in having a relationship with her. Both Sonic and Robotnik Jr. tried to get Breezie to fall in love with Robotnik Jr. instead, and they succeeded. Breezie got married to Robotnik Jr., but remained friends with Sonic.

Archie
Their first meeting was similar to that of Adventures of Sonic the Hedgehog, although there Breezie was a real hedgehog, no romance was involved and Breezie didn't join Sonic.

The two met again when Breezie was hosting a fighting tournament where Sonic participated. Breezie flirted with Sonic several times, although it was most likely an attempt to annoy him or make Amy Rose jealous.

Fanon
Soneezie is not among the most popular ships for Sonic. It is also less shipped (although possibly more acknowledged) than Meteezie, the ship between Breezie and Metal Sonic. Breezie is generally seen as one of Sonic's many love interests due to the ship's canon status, but Breezie is almost never the main pick when it comes to shipping Sonic.

Fandom
DeviantArt
 * soneezie tag on DeviantArt

Trivia

 * The ship can be seen as either het or non-binary, as the original version of Breezie is a robot designed to look like a female hedgehog while the Archie version of Breezie is a real hedgehog.