<human>: Can you provide a brief overview of the text?

I know this probably won't even compare to many of the stories out there, but I told an ex of mine that I could speak fluent Spanish (and had done since I was born) in a drunken attempt to get in with her at a party. The truth is I can speak so-called "tourist" Spanish (in other words, I can order food at a restaurant and ask for directions...), but at the time of our flirting I think she was too drunk to notice that I could barely speak the language. We ended up going out for two and a half years after that night, and I managed to avoid many situations in which she may have ratted me out, including a month-long trip to Spain together, meeting her little brother's exchange student from South America, and general situations in which I would be expected to speak/translate. 

Eventually, at Christmas time a couple of years ago, I was invited to a 40+ person dinner with literally everyone in her extended family, and turns out her grandmother (and literally half of her extended family!) is Spanish. Her grandmother did a toast to everyone and then looked directly at me and asked me to say something too. I started speaking in English, and she asked me to do the toast in Spanish. Needless to say, I fucked up incredibly (although I didn't go down without a fight! I tried some phrases which would appear in your average beginners textbook). This led to a fight between my ex and I about lies and trust (fair enough), but the truth is I never lied to her about anything other than this fact, and never explicitly mentioned to her again that I was "fluent" after that first night.
<bot>: I drunkenly told my ex-girlfriend I could speak fluent Spanish, was ratted out as a liar in front of 40+ members of her extended family.