Impotence & Erectile Dysfunction Support Group
Erectile dysfunction or impotence is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis for satisfactory sexual intercourse regardless of the capability of ejaculation. There are various underlying causes, such as diabetes, many of which are medically reversible. The causes may be physiological or psychological.
I am much older than you (49 yr old F) and my personal situation is different (married 16 yrs. to a 60 yr old stroke (recent) survivor).
I hope others come forward to offer advice. All I have to offer is trust your instincts, pay attention to red flags and try to initiate conversation and sharing every chance you get. Clearly something is going on, and your husband needs to feel comfortable enough to be able to be honest with you about it.
Depression may have a big impact on the sex drive but of course there may be other factors as well. If he has used a lot of porn in the past he may suffer from porn induced ed. That means that his brain is saturated and are only able to get turned on when watching porn related material. It is like an addication, the more he takes the stronger the stuff in order to get the "high". You read a bit more here: http://erectileformula.com/what-is-porn-induced-ed/