WIBTAH for checking up on a friend

I am extremely conflicted on what to do here. I have a friend (15m) who I follow on Spotify. He has made some very concerning playlists on there recently with descriptions that are very sad. I want to reach out to see what's going on, however I feel guilty because of the history of our friendship. I used to like him a lot and it has become a joke on the group chat, which I wish It hadn't because I can tell it makes him very uncomfortable. I don't like it either. he is in a serious relationship and I apsolutly have no intention of undermining that. I know that usualy in this situation the gf would be the one to Handle this, and I don't want her to think I'm trying to get any type of upper hand. Idk what to do. Should I reach out or no?