Roxanne from a Goofy Movie is such a classic.
I don't know who's idea was to say "Yep, Max is interested in other girls now, Roxanne is nowhere to be seen, theorize all you want about whether they broke up" in the second movie, but that opened a door to many fantasies, so thank you mysterious stranger.
(Only now do I come to realize the coincidence of my first fictional crush and a certain "robot" I've been really into lately)
Edit: Just letting you know, in the e621 post of that image, there are no "forbiden" tags, she seems older there, everyone is an adult, everything legal here.