Niecie, Have you spoken to him about the erection problems? I know you have told him that you need more touching and more sex, but I imagine to a man suffering from ED that would be like putting him in a vise and squeezing very tightly. The pressure would really be on! So he makes excuses and tries to wear himself out, etc.
If the only sex he wants these days is quickie sex and anal sex, and he avoids foreplay and flirting, then it sure sounds like the erection stuff plays a much larger role.
I would first suggest initiating a talk about this topic, even though he will likely be embarrassed and blow you off. If you approach it as a team, maybe he will not feel so alone and helpless about it. Also, he of course needs to address this with his doctors..
Maybe once he realizes that you KNOW he worries himself sick about getting and staying hard, he can relax and just please you and not worry that you are going to think him a wimp because he can only stay hard intermittantly. Annette's husband seems like he is finally seeing this light; maybe yours will too.