You're in my prayers. Be there for him and pray for him. You need strong boundaries for it to work and the strength to be a reliable rock. He will need the help of professionals with his condition together with his will to overcome it in the long run..... I'll join you in prayer that he receives God again and feels His comforting right hand on his life. I pray that you do too, so you can both come through this unscathed. May God guide you as a helper and Richard as a mental health sufferer. God can get anyone through anything, may He soften Richard's heart to His word and stir up the Spirit in him, in Jesus' name, amen.