First time getting a STI

I got that phone call, saying I tested positive for Chlamydia and I have a prescription waiting for me at my local Giant . She told me I had to come back in 3 months to see if it has returned . I know nothing about this infection so I was happy to read that this can be treated within one week.. but I felt so dirty . I knew that the guy who infected me , got it from another girl .. after we first had sex ( I tested negative in the beginning ) He was not my boyfriend , just a friend of 2 years turned into occasional Fuck buddies, occasional because of a 2 hour drive between us. I knew he had sex with one girl after me and I ended things with him a month ago because of that health risk.. turns out the condom broke one time with her.. and she was the source that went from him to me. I felt even worse because I almost let this guy ruin my whole life , for occasional sex.. what if it was HIV? Herpes? I cannot grasp the idea of the feeling that those people who are actually going through incurable sexual diseases have . At the end of it all, we all have to remind our selves that having sex with one person doesn't equal one person. It equals everyone who they had sexual contact with , and everyone who that person had sexual contact with. That can be a lottttt of people . I am sharing this story , to shine light on something I never thought could happen. Yes I took a one time dose of antibiotics that will get rid of my infection within a few days . But that doesn't change what it did for me mentally. The thought of sex is scarier for me now. Who can I trust ? Is it worth it ? I am 24 with 5 bodies.. and my 5th body could have ruined my life . 

Please get tested after new partners and regularly !! I didn't show symptoms , but I had an STI. Better safe than sorry .

Thank you for reading 😊