@WantThisToWorkOut
Hi, this is what happened with me and my boyfriend. He gave me HSV-1 through oral, he didn't realise he was about to get a cold sore and like you wasn't clued up on them. I was exactly like your girlfriend when I first found out and I would just like to say, Please just let her be angry for a while, if it has only been 2 weeks you have to let her process it emotionally. She is going to scream and shout, she is going to cry, she is going to say she hates you but in the end she is still with you. Yes she has said she doesn't know if it will work out but she's upset right now just let it all calm down. Don't offer her advice on it, she'll throw it back at you with a "you have no idea how it feels" and to be honest ..you don't. All you can do is apologise and stick with her and let her know you love her. If you were a strong couple before you will get through this.
Give her time, possibly show her this site and what you've written.
I'll happily chat with her about it all, I'd love to talk to a girl in the same situation!
Hope it all goes well for the both of you!