Sharing Our Innermost Thoughts

Is it wrong for me to move on so easily…?
I was going through some stuff and I wanted a way out…I wanted to talk to someone who I would never meet cause sharing feeling with some who I would meet everyday was really scary…so I decided to text this guy on IG…we were actually classmates in our second grade…when I introduced myself to him in ig…he didn’t remember me at all and I actually felt relieved…we became good friends…he considered me as his best friend…but I wasn’t really able to open up to him too but I liked talking to him cause it was like a escape from my life…we talked almost everyday for around 2 years…and somewhere he caught feeling for me…I knew about it but as I didn’t have any feeling of that kind towards him I just acted like I didn’t know how he felt… during this 2 years we never ever met once…and then we got into a fight I didn’t talk for a month or so…I knew he wanted me to text him first but I didn’t cause I was really hurt…but then I realized that I kind off missed him…note that I have never every in my life missed anyone ever so i thought I liked him too…and one day I finally texted him to confess my feelings but he did it first I was really happy and i confessed too…I didn’t want to directly go into a relationship cause it wasn’t long since I realized that I liked him and wasn’t actually able to imagine him that way so I suggest that we talk it slow and instead of jumping straight into a relationship how about know each openly first…like how about we date first…he said okay but then I had this feeling of guilt always…he was able to express his emotions so openly and they were just so heavy for me as I was not used to dealing with such feelings…and one day when he said that he loved me I didn’t feel the butterflies in stomach but instead felt a pit of guilt fill in and I really felt like shit…I tried to reply with at least an hart emoji but it felt so wrong and then I knew I didn’t like him anymore…I felt so bad that even when I am receiving so much love I can’t love him back and constantly felt like I was using him for passing my time…I felt like shit…how could I do something like this to someone…I finally broke up with him just after a month of us dating…I could tell he was totally broken and I knew I was the reason for that…just because of my momentary feeling I broke someone so bad…I thought I could still be friends with him but that too felt so wrong…after what I did I felt like it was best for him to have me out of him life…and also cause…I felt a kind of relief fill in me…and I felt so guilty for that…I couldn’t possibly be able to be friends after everything…i blocked him everywhere…and the worst part is I got over him so easily…the guilt of breaking a innocent heart was there but I didn’t regret what I did…I don’t regret what I did… only thing is how am I so heartless that I was able to forget our 2 years of friendship so easily…how can I be so cold…