Tailiona

Tailiona is the het ship between Miles "Tails" Prower and Fiona Fox from the Sonic the Hedgehog series.

Canon
Long before meeting the real Fiona, Tails had a romantic relationship with a robotic copy of a younger Fiona called Auto-Fiona. This, however, was a trap set by Dr. Robotnik and Tails was sad to find out Auto-Fiona was a robot.

Tails had a crush on Fiona but she didn’t return the feelings.