Was I groomed?

So basically I had met a guy in therapy around April and May. I was 12 at the time and he was 15. I didn’t get to talk to him much but eventually I got his number through a friend there and we started snapping on Snapchat. I asked him if he had a girlfriend and he said no and I was too young. So I figured he rejected me. A little less than a month later he started calling me pretty and etc. He would make empty promises that we would hangout and stuff but when he left the therapy program he kinda ghosted me. In july he re contacted me, by this time I was 13. He love bombed me and we started an online “relationship”. All he wanted was those kinds of photos and he would get upset when I said no. He was asking everyday so it got annoying. Until I found out he had a girlfriend. I was livid and stopped talking to him. Around August or September his girlfriend contacted me. Basically explaining everything to me and that he was cheating on her with multiple different girls. Since then, now on October 1st he blocked me on everything. His girlfriend left him. And I also found out he might’ve 🍇ed a girl before. That’s a very summarized version and there is a lot more info and I might tell some more another time. For now I am wondering if he groomed me. He does check off the boxes. He gained my trust and manipulated me into sending him that. And at some point threatened me. 

Was I groomed or am I just being dramatic?