I have no easy answers for you. You are likely much younger than my 76 years of age, but I have battled erectile dysfunction for many years, maybe 10 or more. Then, I had periods of experiencing lower and lower libido that then went away altogether for no apparent reason. I'm not overweight, do not drink, not a smoker, no heavy meds, etc. Doctors have not been helpful. Since I have no sex drive, I'm not really missing anything except for wishing I could find a way to restore it, for my sake and my wife's. She's not very understanding.
As for you, you must wait it out until your wife has recovered, and in the meantime resort to masturbation, with or without porn, or abstain altogether. I don't think there is any other way to cope with it. I'm very sorry for your dilemma, and I hope to God your wife recovers very soon. Hearty exercise may help offset some of your sexual energy.