The pharmacist gave me estrogen by mistake and I couldn't perform on my hot date now the girl won't talk to me?

The pharmacist accidentally gave me estrogen rather then a medicine for my stomach issue...I was taking it for several days and was feeling kinda weird but then went on a date with this total hottie that i have been chasing for weeks and well one thing led to the next and when we were making out nothing happened (usually I would have been half hard all nite just being around her and would have been instantly hard once we started kissing/ each other)...I didn't know what to say...she wanted me to let her "work on me" but I could tell nothing was happening...I apologized and just said i hadn't been feeling good. So I go back to my doc and tell him I'm felling weird and the medicine wasn't helping my stomach issue and he looks at it and discovers it is estrogen...I've been off it for a couple weeks now and feel "normal" again, but the hottie won't return my calls...I haven't resorted to leaving a voice mail saying "I was on estrogen"...lol, well just because i am embarred about the whole deal...what should i do?