Google each of his meds to see if any list ED as a potential side effect. If that an issue, he needs to talk to his doctor to find an alternative. If your husband has an enlarged prostate, or an elevated PSA, his doctor will explain why supplemental testosterone is not an option.

Seek qualified medical advice - online forums are not a substitute
 

I'm assuming that this is a genuine post.

Don't blame yourself or feel rejected.

If there is a physiological problem then YOU are NOT the problem.

If he is watching too much porn then this can densitize a man eg training himself only to get off on extreme stimulation eg DP, fisting ...

ED can cause a loss of confidence and solo can feel "safer" without risking disappointing you.

ED is normal as men age, are ill, stressed, on certain meds etc.. As previously stated - look it up. But only look at stuff written by qualified people you would trust to cut you open in surgery etc. not random people.

One of the best online health sources in English is from the UK NHS and UK NICE (National Institute for Clinical Excellence). NHS Doctors don't get paid more for treating you when you don't need it. Big Pharma hates the NHS because of the huge bulk discounts it negotiates. The NHS tends not to overtreat/overmedicate because of cost - so if the NHS advice is eg get vaccinated, see a doctor - then that is what you should do as a minimum.

www.nhs.uk/conditions/erection-problems-erectile-dysfunction/

anonjohn & buddy i con
 

Yes, this is a serious question.
I understand that not every response is a legitimate solution to the problem. I'm actually incredibly impressed by the candid conversations sharing personal experiences. I am encouraged by the insights and goodwill communicated.
I know my husband appreciates a pretty girl as much as the next man does, but wouldn't say he's desensitized; loss of confidence describes him pretty well though. I do intentionally try to accommodate him with lingerie, bikinis, blowjobs, whatever, to communicate that I'm invested & willing. I say accommodate him, but I enjoy it too... I don't mean to sound like it's an imposition or inconvenience.
He isn't on any prescriptions or do recreational drugs, so it isn't a side effect that is wrecking him.
I don't know what to attach as a pic related to the content here; perhaps you have a suggestion?

I think you may have already answered your own question. :D

buddy I con
 

Whatever

I said it before, I'll say it again, communication, Communication, COMMUNICATION. Have the honest and HARD conversation. Honest and completely open conversation.