Childhood Sexual Molestation

My best guy friend recently told be that he was molested by a family member when he was a child. He pretends that nothing happened and says it wasnt personal at all. It breaks my heart beccause he acts like it is not a big deal but it is a huge deal and i dont know what to do. I know he wont go see a therapist and I am the only person in his life that he has told. I really dont know what do to about this.