Erectile dysfunction

Erectile dysfunction....
I'm not sure what I'm looking for. Maybe a vent? Opinions? Similar stories? My lovely hubby has had ED for the last few years. Its due to diabetes, which is common. My problem is it is affecting me and my ability to become aroused. I try, I try so hard to make it more interesting and exciting and so does he. His urge and want is still there, just not the erection. I know it is medical, and his Dr has prescribed viagra, but he suffers horrific side effects such as severe heart burn/reflux which keeps him up half the night, and some times it works, yet others it doesn't. He is attentive and there is foreplay. Now here is where I hate myself. I end up in tears because I feel this way, but I sometimes just think what's the point. I lose interest because it just doesn't work. I am frustrated and so is he. We are able to orgasm but it's sometimes not enough. When we do eventually get a time where old Johnson comes to bat, so to speak, it is OVER very quickly and I feel short changed. I try to understand and I do take his feelings into account. I've tried looking for support for women, but it seems all I can find is the ones for men. Sorry if it's TMI, I'm just feeling very down about things atm.