Kinda wanna vent- don't fuck coworkers!

I got a new job and it's an AMAZING job, lots of benefits and room for growth for someone like me who's only 18 years old. Anyways, training was 5 weeks long and it was very 'high schools' like, considering I just got out of high school that's how it felt. We had a class, took breaks and lunches together, and my classmates began feeling like family, I spent everyday with them for 5 weeks so we all got pretty close. Anywho, there was one guy in there every girl had a crush on, including me of course. He was super cute, but he'd been through a lot of shit the past few years, major depression, hadn't met any new people or had a job for the past 2 years. He was 28, 10 years older than me but I liked him a lot. Anyways, the second week of training a few of us went to Denny's after work and decided to go get drunk in some little motel. He and I slept together that night, which was AMAZING, but a bad idea. We had flirted a lot before then and for a few days after. But after we went back to work it got a little weird. We still got along but there was some distance. The next weekend he went out to the bars with some other coworkers who were of age. When they came back one of the girls who were with him (him and 3 other girls went) was super pissed at him, wouldn't talk to him or anything. I just knew it had to do with me. Something happened. So after 3 weeks, the very last week of training, she tells me I need to go get tested, that he has genitalia herpes and didn't tell me. He told all 3 of those girls that night but they didn't tell me because they 'didn't want to get involved'. I felt betrayed by who I thought were my friends but moreso by him. He's kept that from me and when the friend that DID tell me asked him why he wouldn't tell me he said "she's a slut and I'll treat her as such" so that hurt. He knew I'd just gotten out of my very first relationship, I was already hurting a lot. I got tested and thank god I came back clean but of course the girl who told me also told HR. So I had to go over it with them. They asked if I was going to press charges or get a restraining order which I don't plan to do. He and I "talked it out" and he apologized a ton, it was about a month ago so I'm not going to do anything about it now but I can't stop feeling so horrible about myself. I know it's my fault, my dumbass hooked up with him while I was drunk, but I've been hurting so much I haven't been able to trust anyone anymore and I can't bring myself to even talk to any guys who I know are better than him but all I can think about is that I'm a slut so I deserve to be treated like this.. I just wish I could feel good about myself again. I feel so betrayed, violated, and dirty. I know herpes is super common and I'm super lucky I didn't get it but the things he said and the way he made me feel just has me sick to my stomach, like there are no decent men left in the world and if there are, none would want to be with a slut like me 😔 I just had to get it out because I was holding it back for so long..