My friend called me a bad person, now i'm cutting myself
So i have this friend, and i play with every day, and i've done that for the past couple of years. He's fun to play with a talk, but a concerning amount of the time he gets very angry while we play, and sometimes that anger goes over me and he snaps at me. I was fine with this for a while since y'know people get mad, but then one day, i didn't want to play, so i said that to him. he messaged me probably over 6 times and was very angry at me for not playing with him. now when i do it he's just passive aggresive. but one day i wanted to play alone, so i told him that and then he said we "maybe just should't be friends" i was obviously confused so i asked why. and he said that if i liked playing without him more than we shouldn't be friends. so i explained to him that i like playing alone sometimes, but MOST of the time i want to play with him. he just said sure and we didn't speak until the next day where he just ignored any of it happend and i didn't push the issue since i hate when he's mad at me. now a few days ago i had a sleepover with my girlfriend and when we woke up the next day i was tired and was half asleep as she played games. a few hours later she sees i have like 7 messages from my friend. So i look at my tablet and go in one discord. When i look at his messages he's saying that i'm ignoring him and he calls me a bad person. i was just annoyed and confused at the moment, but later i begin thinking about those words, "bad person" am i a bad person? it got to me so bad that in the last couple of days i've been cutting myself, i don't know if i derserve it or not. Any advice? (edit my girlfriend is 16 and me and my friend are 15)
UPDATE: So i talked to my friend and he said he didn't mean it when he said i was a bad prson, he was just mad. he was still kinda mad that i'm spending more time with my girlfriend then him, which is both wrong factually and i think he's being a bit possive of me. i said to him that i don't play with him sometimes because i need to relax or i have burn out and he agreed, but he also immediately added that because he is always on that he thinks i don't care about our friendship enough. i told everything to my girlfriend and she said i need a therapist, but i don't want to worry anyone so instead i just asked her to come over tomorrow so i can talk to her. (also forgot to say this i haven't told anyone about me cutting myself, but i am planning on telling my girlfriend tomorrow) (me and my girlfriend have kept our relationship a secret so my friend doesn't know me and my girlfriend are dating he just thinks we're friends.) any advice?