Ok, so first of all, it’s 100% NOT you, a man’s penis not working has no reflection what so ever on the person they are with.
Secondly, a GP ( assuming that’s who he’s seen ) will typically not be concerned about a young fit male in his 30’s who has ED and will tell you there isn’t anything wrong. He needs to see a urologist, preferably go private, pay £300 for a consult and a Doppler which is the only way of accurately assessing ED.
ED happens at some stage to nearly all men. He only needs to be stressed once, or tired, or have an overly fatty meal for it not to work properly and then it is further compounded by being psychologically worried about the same happening subsequent times and it becomes a viscous circle.
if it only happens occasionally then I would suspect it’s psychological rather than physiological.
PDE5’s like viagra and cialis can work, but will have less of an effect if it’s psychological. So, if he takes a viagra, and there is no improvement it does not mean it will never work. I would suggest 5mg or cialis daily; taken as a supplement when he wakes up. Cialis lasts for up to 36 hours and if it becomes part of his morning routine he should/might see improvements. This should get his mojo back and he can then stop taking them once his confidence is back.
couple of questions:
is he overweight?
does he smoke?
does he have a generally healthy diet?
does he drink excessively?
all these play a huge role in penile health and if the answer to any of these is yes, then you should see a noticeable improvement if changes are made.
the biggest advice I can give you is don’t make a big deal out of it when it happens, reassure him and don’t put any unnecessary pressure on him to perform.
if you want to try a more organic approach, cock rings are great, as they trap blood in the corpus cavernosa, but he has to get hard to begin with for this to work- and only wear a ring for 30 minutes max!
it’s great that he seems to want to sort it, and it’s great that you want to help him, but working alongside ED takes patience from both of you, but the rewards can be immense.
I’ve had PE, ED and Peyronies, so I know exactly how it feels, but i’ve come out the other side stronger than ever so I can assure you there is always a fix.