So it sounds like she might have hsv1 - lack of sleep is a trigger for an hsv1 outbreak. Obviously, this is speculation, and I don't know what she has, and maybe she doesn't either.
If it is, though, if you have it - and once you have hsv1, you always have it - you can't get it again. You have antibodies that protect you from getting it in a different location. If you got herpes on your genitals from oral sex, you'd have genital herpes type 1, not hsv2. The number indicates the strain of the virus, not the location of it.
That said, don't let anyone with a mouth sore perform oral on you. It sounds a lot like this is hsv1, but oral sores can be bacterial that you can get on your genitals, or syphilis, or any number of things you don't want. Also, if someone is sick with a cold, the flu, or other upper respiratory illness, or even strep, you can get that infection in your urethra.
The condom protected you significantly if it was bacterial, though, and it really does sound like hsv1, which you already have.