Help me find this animated movie

I can only remember one scene from this film and it’s driving me crazy not being able to remember what film it’s from… I’ve searched online and can’t find anything!

I remember that there are these two rich main characters (a couple-boy and girl) who are sharing the same toothbrush because they are incredibly in love. Then, for some reasons that I don’t remember, he left and she decided to go find him.
I remember that the quality was good, like Pixar or something…

1 Like