A man wants to date a woman. However, a bad couple takes away their paintings of Santa Claus displayed in a park, causing conflict and misunderstanding between the man and the woman.

I am not sure who the two who like each other is, is it the couple whose painting is stolen, or are one of the characters from the original couple and one of the characters from the ‘bad couple’ friends and this incident causes trouble between them?

The wording is just a little unclear but the overall idea does get through.
So more along the lines of a minor tweak to the logline, not a major overhaul.