10 Biggest Unanswered Mysteries In The Simpsons
7. What Happened Between Lisa & Colin?
Like anyone in the Simpson family whose name isn't Homer or Marge, Lisa has had a rough time when it has come to her romantic life. Nelson lied to her, Thelonious went to another school, and she wasn't ready to settle for Milhouse. She was even hurt by Hugh at her wedding in the future.
One boy that she appeared to get on famously with was Colin. During the Simpsons Movie, she connected with the Irish musician over a love for protecting the environment, and he even wrote a song for her when there was a dome separating them.
The last thing Colin did in the movie, after revealing that he had not been killed, was to take Lisa for some ice cream. The two walked off into the sunset holding hands, but it would seem that this didn't last forever. The two were never shown to be going out with each other again, but what actually happened?
Colin can be seen in the opening credits of 'He Loves To Fly And He D'ohs', the first episode after the movie, and in 'Lisa the Drama Queen' there is a boy who looks suspiciously like Colin attending the same art class as her. The two were smitten, but something clearly came between them, and we'll never know what.