u/Electicsub

Me and my friend were playing shadow of the erdtree for the first time after beating the base game together. As we are playing - a player invades us. They are super toxic. They kill my friend then kill me. Strangely when I respawn he is still there. I panic as if he kills me a second time I lose a lot of souls. I alt f4 and straight away the toxic player sends me a steam friend request. I deny it of course as he would just be annoyed I wasn’t dealing with their bullshit. Is invaders staying after winning a glitch or a hack? Or even a feature? Thanks