You must admit, despite the fact that they are goofy toons, Roger and Jessica's happy marriage is very endearing to watch. "He makes me laugh."
The fact that Angelo and the other skeevy barflies didn't end up selling out Roger and Eddie... because Roger made them laugh and brought some happiness into their lives.
I honestly think the first (and sadly last) teamup between Mickey Mouse and Bugs Bunny was a wonderful little thing.
This may not seem like much, but the first heartwarming moment for this troper was when Eddie met Betty Boop in the Ink and Paint Club as a cigarette girl. He's shocked to see her there on hard times since cartoons went to color. But she keeps an upbeat attitude giving him her trademark 'boop-boop-be-do-boop'. Eddie, the guy who at that point despised any and all toons that he met, actually gave her a genuine smile and remarked, "Yeah, you still got it." Says a lot for the guy that early on.
Also when Betty Boop actually compliments Jessica, a color cartoon, by saying her husband is a lucky guy? And she then cheerfully clicks Eddie's gaping mouth shut.
(Actually, what Betty says in that scene is "What a lucky girl," indicating that Jessica is the one who traded up by marrying Roger. Still quite a compliment.)
This part of the scene where Eddie and Dolores are hiding with Roger in the movie theater gets me every time:
Eddie: You oughta go find yourself a good man.
Dolores: But I already have a good man.
Followed by Roger in full-on Shipper on Deck mode, his ears forming a heart.
The final scene of the film where Porky Pig and Tinkerbell get to close out the film together in their distinctive ways, bringing this unique team-up of animation companies to end in the most charming way possible.
When Eddie, well-established as an alcoholic, decides to take a drink before entering Toon Town, but then visibly toughens his discipline and instead uses the bottle of whiskey as target practice.
He probably was going to use it as target practice anyway, but the heartwarming is that he dumped the whiskey out rather than drinking it.
Herman defending Roger, saying that he doesn't think Roger is a murderer.