I feel so stupid

I’m feeling a bit stupid, i started hanging out with this guy and in the beginning we both said were unsure if were ready for a relationship. (Mistake one on my part) i really started to like him and everything was going great. With the way things were progressing and talking everyday/seeing him a lot I started to hope that we could maybe become something serious... he got distant after 2 months of being super consistent gradually. Stopped coming over weekly, texting pattens a little strange, and in my gut i KNEW something was up. When a guy wants you he’ll work and in the beginning he was working for me and then it just stopped. I didn’t beg for more attention, or keep reaching out, i instead just observed. The behavior had definitely changed. Now i WILL admit that i am terrified of communicating “hey i like you” bc i fear the rejection so much. I want to communicate I’m just nervous. I should’ve listened when he said he didn’t want anything serious but I didn’t and now I’m hurt. I have a feeling he’s talking to someone else but again I’m having a hard time verbalizing that to him. I didn’t want to text him how i feel but have an in person convo instead. I feel embarrassed and dumb, I really liked him but he never told me he specifically wants me.. so I feel like i did too much. I took a step back from talking to him so much bc i feel so much i just need to clear my head. I feel stupid and embarrassed, and I’m trying not to be hard on myself but i really wished i would’ve listened when he told me he’s not ready for anything.