Did I miss the mark?

It’s been a month since I (19f) had reunited with my ex (19m) a bit, and he was giving mixed signals so I decided to just stop talking without really saying anything. The thing is that he was planning to hang out with me which we did a couple times, but then he’d never text me like at all, just a couple calls late at night. This seemed like the highest red flag to me and I didn’t wanna make a stupid mistake and get hurt by him again. We’d talked about what happened in our breakup, he told me he still had our pictures, he still thought about me, and he mentioned that he wanted to try again. So I can see how it would’ve looked like he was trying but there were still mixed signals, and I felt the need to flee. I feel some way about it now and I probably shouldn’t, but i don’t know it’s just stupid.