Potential diagnosis and broken up with in one day

For context I'm a 19 year old female and I've been dating a guy exclusively for 2 months. I came down with a fever and started to experience some of the standard genital HSV symptoms. I immediately went to my family doctor but for some reason she had NO CLUE what it was, actually saying "herpes is least likely." She took my blood and did a general STD panel and I made my way to a sexual health clinic. Doc there said she was almost certain its herpes and took a swab + put me on meds.

I started crying right then and there and have been non-stop since then. I IMMEDIATELY called the guy I'm dating as he knew I was going to the doctor and told me to update him. His first reaction was "you have herpes? what the fuck" and we went back and forth from there. He's been understanding and kind to me (knowing shit happens) but made it clear that this is a dealbreaker. I sobbed in my mothers arms for hours until I fell asleep and literally started crying the moment I woke up today.

Not only do I (most likely) have a life long diagnosis, I lost the man who i was falling in love with in one day, just at the beginning of what was supposed to be the best summer of my life. I feel so lost and depressed all I can do is stare at the wall and let my mind wander. The tears come and go and my mom has been here for me but how the hell do I move on from this? Obviously my summer is fucked just from a depression stand point. Im at a point in my life where I've been wanting a serious relationship, dating for marriage kind of thing, but sex has always been extremely important to me. I feel embarrassed and dirty and like this is something that is going to loom over my head for the rest of my life.

Any advice and/or success stories are appreciated, especially from young people like me.