purplelirpa

If he has any of the herpes (cold sores, shingles, or genitals), l-arginine can cause outbreaks to become more frequent, so be careful with that one if this is the case. Edit: Suddenly the post that someone posted about l-arginine has disappeared, but this was a relevant point, I promise!

As for the erection loss, I dated a guy in his early 30's who had had this problem because of a previous ex destroying his confidence. Then, it became a feedback loop- the loss of erection destroyed his confidence further, thus contributing to more erection loss. There's a lot of pressure on guys to be rock hard all the time, and any stress going on can be reflected in his penis.

I think of it the way I think of my own reproductive issues. When I'm stressed, my periods and PMS are affected (Stress hormones affect other hormone levels). My libido drops, things might feel good, but I won't get wet enough. If there's any pressure put on "trying to turn me on" rather than just trying to have a good time, sex won't happen. It has to happen naturally or the mood is just killed.

Has something been stressing him lately? New job, new house, death in the family, money issues, car trouble, new baby, health issues, etc, etc? How long has he been having troubles getting an erection?

If stress is a factor, a good experiment might be to try to think of a scenario which would put the two of you in close physical proximity, but which doesn't immediately imply sex the way making out and taking off clothes does. Say, giving him a shoulder massage as the two of you are waking up (testosterone is highest in the morning). If he asks if you're wanting to have sex, just tell him you thought he's seemed a bit tense lately and you want to help him relax. If he's into it, rub down his whole body. If you start getting a sexual reaction, well, you can take it from there.