Isn't this the truth of any good mother? That in all of our lives. We worry only about those we brought into this world, regardless of whether they loved us back or treated us fairly or understood our shortcomings.
I've learned one important lesson in my life, and I'm going to share it with you. Don't worry about bad things that haven't happened yet. It will save you a lot of anxiety.
Maybe a first love exists to reaffirm the best parts of yourself, the choices you made when you didn't worry about the consequences. Maybe a first love exists to remind you to be brave in the moment, to stand up for your feelings, instead of shrinking back in the face of potential loneliness.