My friend was messing with me about being single on Valentine's Day, because they have a person.
I just looked at them and said, "I'm my own person, and I don't need someone else to define me...........I may be single, but I don't really care, because even if I have no one, I always have myself, and someone, somewhere loves me.....whether it is my family, or my friends, or someone who I met at a passing glance, someone cares for me, and that's all I need."
So, if you're single, remember, someone loves you, and you always have yourself.
Don't ever let anyone tell you differently.