Should I Tell Him?

Hello! I am 20 years old, I have had a friend for a year and a half. Unfortunately, after 6-7 months he changed a lot, became arrogant and rude, insults, slaps, throws, etc. I did everything for him, literally! I don't want it to sound like I'm idealizing, but the truth is - I decided to invest everything in this connection and make him the happiest, but I don't know why, instead of getting better, he took me for granted and started hitting me. , insults, etc. for a period of several months (rarely, but he did), left me alone on the street, just left, did not pick up the phone and so I was ruined in my head was just "How can I do everything, and he from the sweet and good boy I fell in love with, to become that mean and bullying guy? ”. I was lonely even with him ... and so I went out with his friend (not the closest, but still a man, who knows him) in order to give me advice. And so we started going out at times when my friend was behaving badly with me ... I was going out with his friend in question (I'll call him "H"), I was crying and he was calming me down. So we became close and for 7-8 months we go out regularly. We had no physical contact, but he fell in love with me. For me, however, he is just a friend ... the truth is that my boyfriend (for example "G") has started to change and has been behaving very well with me for several months ... his last violent crisis was 5 months ago ... unfortunately, apparently out of all the stress, I also developed Panic Disorder. Now that my friend is being nice to me and I love him ... should I tell him about H? Or not? It weighs on me that I'm hiding from him, I'm going to end my contact with H even though he's my best friend and he's helping me a hell of a lot,