I think tawxic was saying that he did get erections at other times, including when he was with her. It's just when they're about to have intercourse that he can't stay hard. My guess it is performance anxiety/nerves, the #1 cause of erectile dysfunction. Of course none of us here are experts . But I'd say stay away from the meds without a doctor's recommendation, as others have said. The advice about creating an environment with her where you feel at ease is also good. I know it's tempting to go for the quick fix/magic bullet, but that's not always the wisest solution, even if it actually works in the short term.