The reason might be anything from a planned escape to a sudden change of heart. Maybe they are going to help someone or it's part of a bigger plot in the cartoon.
It could be that she was influenced by some external factors or had a moment of weakness and made a rash decision to drive off with the other guy. Maybe there was a misunderstanding or a long-buried issue that came to a head.
Well, it could be that the cartoon guy has a job related to transportation, or he's just having fun exploring in the truck. Or perhaps it's part of a story where the truck leads him to new and exciting places.
Maybe it's his charm or kindness that attracts her. You know, sometimes love just happens without a clear reason.
Maybe he's in a good mood and just wants to express it through singing.
It could be that the short cartoon girl is drawn to the pretty guy's confidence or sense of humor. As for being funny, it often stems from their unexpected encounters and the way they react to each other's quirks.
Maybe he had a bad day at work or got into an argument with someone.
Maybe she's found a better connection or a new opportunity with that guy.
The cartoon guy might take the antlers off because they are damaged or it could be a symbolic act in the cartoon to represent something deeper about the character or the situation.
The cartoon guy might be drooling over the pretty girl because he has a crush on her and is showing his extreme infatuation in a humorous way. It's a common way to add comedy or emphasis in cartoons.
Maybe the road is crowded or there's some kind of problem with the car. That could be why it's moving slowly.