- Hyde – Actually, you're my first dance
- Donna – I'm your first? I'm honoured
Real Life Relationship
Friends since childhood, Hyde had always liked Donna, a lot for her physical attributes. He had and still admires her femininity, masculinity, intelligence, and charm.
When he noticed Donna was starting to have a thing for Eric in '76, he and him played mind games and verbally insulted each other to win over Donna, despite Hyde intially encouraging Eric to make his move on her.
Eventually Donna chose her intuition and urge and went with Eric after Hyde was moving too fast (ex. kissing her unexpectedly) and Hyde not seeming like her ideal boyfriend, with Hyde quickly moving on from pursuing her, although he does compliment her looks and personality in micro and subtle ways at times, no matter if she is present or not.
Donna still really loves Hyde as a good friend, wanting the best for him as she believes under his hard exterior, he is a good person deserving of love and happiness. Hyde also really loves Donna as a good friend and wants the best for her.
Alternate Life Relationship
In the episode It's a Wonderful Life, an angel takes Eric into an alternate timeline of what it would be like if he were never with Donna.
Instead of Donna kissing Eric in 1976, changing their relationship from friends to boyfriend and girlfriend, Hyde would've made his move the same day and kissed Donna, changing their relationship from friends to boyfriend and girlfriend.
With Eric feeling sorry for himself that Donna is going out with Hyde instead of him, Hyde's influence quickly turns Donna into a rebel, just like him. She starts to wear clothes Hyde approves of, gets a belly button ring, gets tattoos, and changes her hair just for Hyde but starts to become a less assertive and more insecure woman who doesn't pursue her own interest goals, opposite to her personality when she was with Eric. They eventually get married in 1983 at her house and have one child together but Hyde gets arrested shortly afterwards.
In 1988, Donna goes to her High School Reunion where she reconciles with Eric as a changed woman because she had since abandoned her rebellious ways of living. She admits to him that she had a crush on him in high school but never acted on it. Both hint that they would've rather been together due to both being upset on how their love lives and lives turned out in general but accept they can't change it.