STD! In need of advice! 😰

So.. I used to be with a guy for about 2 months. We weren’t in a official relationship but we were having small dates 1 or 2 times a week... anyway we were mostly together just for sex.

Until one day we just stopped. It’s been a month or so.. and today I just find out that he gave me chlamydia.

I don’t have any symptoms (thank god) but my doctor gave me a prescription and told me that my partner have to take it too.

I am freaking out!

How do I tell him?

I mean... I should, right?!

It is the right thing to do.. but how!? I know I am being childish right now... but I really need your advice!