AITAH for telling how I felt

So after many years of science I wrote to my ex friend and I was not nice, a little background, I had this friend years back that I met trough gaming we knew eachother for a decade online we talked almost daily and we had similar interests, however through the years he has been somewhat toxic and condescending with me. He's from a western country living with is parents having a low paying job sleeped around alot, in his 30s me being from eastern Europe and had to earn my shit. I cut off relations with him after he got a 19 year old gf and become more toxic. So last night I wrote him some not so nice (but true) facts and feelings towards him and of course I was met with an pompous and high and mighty reply that was long as a novel (he always liked his own voice) including his usual stab at me for drinking, and telling me how awesome his life is although nothing really changed for him since we spoke. Than he asked me to never contact him again so I just replied K and blocked him.