advice please?

So about in December I had sex with this guy from my school, and he ended up dipping and never speaking to me again. So I was whatever with this. Well there's this other guy that I speak to now, and supposedly they're friends, or don't really talk like that, I haven't had sex with him and don't plan on it until I see it's serious, but I feel bad like I know it isn't bad cause it's not like I fucked both of them, idk 🤦🏻‍♀️ I guess I'm scared that the guy is gonna talk shit about me and say what happened that day, and make me seem horrible. Advice?  or pep talk lol