I feel like I'm not enough....

I'm trying to get over someone who strung me along for a couple months. We hit it off pretty fast and our chemistry was amazing. He would always tell me that I'm amazing and he appreciates me. He would start doing stuff that I enjoy such as reading. However he wasn't ready for a relationship and part of me cant help but feel that it's because I wasn't enough. Maybe its part of rejection but I feel so down about this. I'm wondering what about me could have prevented him from committing to me despite all the things that he said and did for me. I'm so confused and hurt. Feelings aside he was one of the best friends I've ever had and I cant help but wonder if what we had was real in any way or just pretend. I feel like I'm not enough and I'm even more hurt. Please help this is really hard for me 😪😭