I think 1 BTC as a gift for Valentine's Day is not a thing that we expect for this holiday, sure, it is a pleasure to receive such a gift, but for me, Valentine's Day is a holiday when you expect to receive some gifts like photos with memories, flowers, some romantic atmosphere and other. I think BTC could be offered in other day, but for Valentine's we should offer something more common for this holiday.
Valentine generally is an act of love, love is felt, shown and proven. Whatever thing you choose to gift someone as a gift today doesn't matter as far as love is shared and felt. I personally consider 1 BTC too expensive to gift anyone currently maybe I can't afford it that's why but it doesn't really matter what you gift your loved ones today.