So you forgot Valentine's day. Kill two bird's with one sedimentary rock at Defending the Caveman. Your partner will definitely (hopefully) be impressed by your thoughtful (expensive) theater tickets, while you both learn how to overcome the struggles that stem from intractable differences between the sexes. Sorry, this play has a vacuum of advice for the gays. Did we mention that this is the "longest running solo play in Broadway history" and widely regarded as hilarious? You might want to pass that info along to your partner.