Question for everyone here

I know this dude for about a year and a about 3-4 months ago he confessed to me. Back then I really thought I liked him but I wasn’t so sure so I told him “hey i think I like you too but let’s wait a little longer”. So I’ve been thinking things through since then. While we were in the “waiting” period, I’ve told him multiple times that I tend to do something and back out, please don’t do anything in this period that you will regret, and other stuffs that would ready him if ever it’s really not the same. After I’ve thought it through, I told him that it wasn’t and that I mistook it for friendship (stupid of me Ik) but now.... he’s blaming me for leading him on, that now he’s depressed cuz of me, that he can’t feel anymore. Is it really my fault? I accepted everything he told me but is it really my fault?