Hi thanks for contacting HCM.... You can give advise to your partner to consult surgeon for that...There are lots of medication also available. His case needs to be investigated with detail examination and accordingly investigation... He might had lower spinal cord injury operation as by history ..So problem in erection... Also rule out diabetis , hypertension and obesity that can lead ED. Smoking and alcohol habit also an lead erectile dysfunction... Advise him also not to take stress For erection dysfunction sildenafil like drug given which has onset of action within 30 to 60 minutes... Self injection of alprostadil delivered through pellet option also there. Healthy diet taken. More fruits... Regular exercise. Fore play done more.. With keeping my answer in mind consult psychiatrist.