Kinda similar with my now FIL. When my now wife and I first started dating, she mentioned that they don't drink. So, if we went out to lunch or something, I didn't drink. If they came over to my house, they may have seen beer and wine, but never said anything about it. Then we were on vacation together at a beach side restaurant. future FIL is setting next to me. I thought, F* it and order a Modelo. He looks at me, then looks at the waiter and says. I'll have one as well. Whole table went silent (about a dozen people) my wife was just staring in shock. Me : "You like beer?" Him : "I love beer. But between moving down here (from Chicago right before FIL and MIL met) and having a family, I don't really know anybody who drinks." Now we buy each other random beer, hot sauces, and chips for Father's day, birthdays, ect. Best was when he bought and entire case of Strohls.