Hi Bean
I'm so sorry to hear you're left with this awful predicament.
It's the chicken and egg too. Without a woman it's a bit solitary, but with ED difficult to approach a new relationship.
If you were my concern.... Id say get an appointment with an ED clinic, private if possible and if NHS cant give help in a timely fashion. Discuss the urethra problem and other options.
I would hope there is treatment for a stricture of the urethra. There are clinics for long term damage from EBRT
Im puzzled why viagra doesnt work if your libido has returned. Perhaps it is the lack of a partner. Injections?? They've worked really well for some on this forum.
I'm hoping if you search hard enough you'll find the answer to this.