Am I a bad friend?

I (21F) cut off a guy friend (24M) three months ago. I didn't explain anything, I just blocked him. Now I’m feeling super guilty and wondering if I was the bad guy here.

For context, I have a long-distance boyfriend. This friend knew about him. We were genuinely close for a while. He helped me with school stuff, paid for food sometimes, and we had a good time hanging out. But mixed in with that, he started getting weird. He was getting really clingy and acting like a boyfriend when he wasn't. It honestly just creeped me out. He and I have been friends for roughly two years.

A mutual friend told me I was bad for "not setting boundaries," but I did try. At first, I made excuses or tried to hint that I wasn't interested in that stuff. When he didn't get it, I was straight up with him about certain things. The problem is, every time I shut down one specific behavior, he would stop that... and then start doing something else weird a little later.

I eventually just felt very uncomfortable, so I blocked him.

I feel guilty because he really did help me in the past, and I feel like I owed him an explanation. The mutual friend said he was always respectful to her and that he "deserved better friends," which is messing with my head. I saw him recently and panicked and walked the other way.

Was I a bad friend for just cutting him off? This has made me question if I was just a bad friend who used him for help and then discarded him when I got annoyed.