Dream About Finding Brothers Phone In Friends Basement

I was at a friends house, with another friend of mine. We were having a lot of fun until we heard a noise in her basement. Since her basement didn't have stares, i don't know why, our friend jumped down and I went down a little after. We were listening to music while we were looking around her basement for anything that explained the noise we heard upstairs. We were searching until I found a phone..I recognized..it was my brothers phone. When I found him sleeping, I threw his phone at him and he got up. I asked why he's in our friends basement sleeping, he said that he was in the basement to sleep, he was trying to find us a car. He didn't like the fact I left. He kept asking me why I never taught him the way I learned to survive, gesturing to his arms as self harm. I kept telling him that I needed to leave before I fully committed suicide. I woke up after that, I don't remember the ending. Note, I haven't talked to my brother in over a few months, nor have I seen him in person the past 4 years.