In Mexico (and Guatemala and many other Latin American countries) February 14 is called El Dia del Amor y Amistad. This translates to Day of Love and Friendship. When I was 19, I spent Valentine's day in Puerto Vallarta where I was going to an intensive language school. I was entirely single, and I appreciated that I was still included in the holiday. A friend bought me roses and a group of us went out to dinner and dancing to celebrate. I'm all about inclusivity.
Here are some pics of our Dia del Amor y Amistad: