Trending Funny Valentines Day Insta Captions : If you can't find the words yourself, you can't go wrong with borrowing a romantic valentine's day quote, sincere valentine's day wish or stealing a line from your favorite valentine's day movie. The key to my heart. Funny Valentines Day Insta Captions - These cute and fun valentine's day jokes are sweeter than chocolate and are sure to make your loved one lol.