For whatever reason (*cough cough* movies and tv portraying tumultuous relationships as normal), we love to assign deeper meaning to objects and actions when it comes to our romances. There's no day this more true than on Valentine's Day, where different gifts supposedly telegraph different meanings in a relationship, according to a dating expert.
Jewelry, no matter the type, supposedly means your partner is serious. (or they just have some money to spend and that's an obvious one, but ok)
Going out for dinner could mean they're selfish if they take you to THEIR favorite spot (god forbid someone share apart of themselves on a holiday). If they take you to YOUR fav spot, it shows they'll put your needs above their own. Which is, like, ridiculously unhealthy but ok.
Chocolates picked up one the way home from he drugstore allegedly shows they forgot about the holiday and you're an afterthought. Ok no, chocolate is chocolate and someone took the time to get it for you. Someone paying attention to an arbitrary date shouldn't mean more than how they show up for you every single day. But you can read the rest of this questionable advice here.