Hello sweet summer and welcome to MaleSurvivor. Pero is on the right track, survivors need therapy, but to offer it to him may be met with resistance.
Listening is a good response, "active listening" is a wonderful tool to help support a survivor, but be careful, survivors trust initially, but we quickly find that the reasoning of the supporter does not match the information in their thoughts or has the "fix-all" we depend on to make everything alright. By listening, asking questions and being patient, the supporter keeps the survivor at the head of his own decision making.
Be sure sweet summer, to find a support group that you can feel free to really express yourself about the frustrations, the fears and the pain of supporting a survivor. It is not cheating, nor disparaging to voice your struggle, there is much good that can come from the advice and experience of your peers.
Supporters are very important, thank you for reaching out for our fellow survivor,