I am single so do nothing but one year I got together with a female married friend to have a meal. We had a wonderful meal. It was only later that we realised that the staff at the hotel restaurant thought we were in a relationship. https://www.familylife.com/articles/topics/holidays/featured-holidays/valentines-day/25-valentines-day-ideas-for-couples/ https://www.hellomagazine.com/fashion/royal-style/gallery/2019020567556/valentines-day-gift-ideas-inspired-by-royal-couples/11/