He calls you within 24 hours of getting your number.
He books the first date as soon as you let him.
He books the second date before the first one is over.
He takes an interest in you, your career, your interests and your life.
He changes his schedule, his plans and so forth to be with you.
He leaves his boys to be with you.
He shows up...early!
He listens to you, supports you and gives you what you need, not what he thinks you need.
He is sincere in his affection towards you.
He makes you a PRIORITY in his mind and heart.