I found a "friend" in ingame LFG. We did a good run of Equilibrium fast and smooth and he added me to friends. Since then we have been playing together, specially the dungeon, and teaching him some tips to play warlock etc. Today, he invited me to an activity with someone else, surprise, it was Equilibrium with cutthroat. My build that did well in the first encounter did not as well in the second, so after blaming me for the ammount of phases we had to do to kill Harrow, his decision was, when the boss was literally 100hp, stay afk, kicked me from the fireteam, remove me from friend and blocked me like the cowards they are. I can't report them in game since they insta blocked me and cant interact with their names in chat, and as far as I know, I can't put their names here, even tho, I do have them. Please help me with how should I report them correctly. Don't let players like them run free, seeing that they can do this all the time without consecuences.