TIFU by giving my GF of 5 years genital herpes

I found out that I gave my long-distance girlfriend genital herpes today from a visitation 2 weeks ago. She has the bumps, symptoms, and is going to get tested later today, but we're basically 99.9% positive it is genital herpes. We both have had no sexual partners prior to one another (except 1 for me over 10 years ago). Me and my girlfriend have both gotten cold-sores growing up, so we both have knowingly had HSV-1 (Herpes Simplex-1, the cold sore virus).

I had no clue that not only can you give someone genital herpes from carrying the cold sore virus, but you can also give them genital herpes EVEN IF YOU DON'T HAVE A COLDSORE (albeit, much more rare).

Our general understanding from the research we've done over the past 2 hours, is that HSV-1&2 are 2 different strains of the same virus. HSV-1 spreads through contact with the virus in saliva or skin. It usually affects your mouth and face. HSV-2 spreads through sexual contact and usually affects your genitals. Although either form of HSV can show up on any area of skin that comes into contact with the virus. So it seems like I have given her HSV-1 genital herpes through oral sex despite having no cold sore, although we will find out soon enough with testing.

We live in different countries, we don't get the opportunity to be sexually active often, I've never had a cold sore while we've been together in person. If I would have had a cold sore while we were together in person at any point, I definitely would of googled it to find out if it's okay to go down on someone with a coldsore and found out that there is a chance that you can give someone genital herpes even if you don't have a coldsore. However, I don't think that would of stopped us from ever doing oral sex again and we would likely be in the same boat because the research indicates that it's significantly rare to pass along HSV-1 with no coldsore during oral sex, but it still would of been nice to know that it was a possibility so we could weigh the risks.

TL;DR: I didn't know you could give someone genital herpes if you carry HSV-1, and despite not having a coldsore, I gave my girlfriend genital herpes via oral sex.