VALENTINE represents selfless love and affection of all kinds, not necessarily of the romantic variety.Your VALENTINE aspecting his VX means that part of you feels magical and like a sudden stroke of fate, like you might be a destined person to arrive in his life. You appeal to his "fate radar", and make him feel appreciated.
His VALENTINE aspecting your AC makes him seem like a sweet person at first glance. His support makes your inner self stir with confidence and assurance, and it makes you weak to his gentleness.
It's a good mutual spark, but I'd recommend looking for other, more long-lasting contacts for romantic relationship potential.