I cant find my friend on my friendslist. They are gone

We were on each other's friendslist yesterday. Now I cant see them even after I scroll through offline players. We were in a club we were in together. Reached out to the other party and they hadn't blocked or removed me themself. Does anyone have any run-ins with this before??? Resent a request to them anyways, idk what happened though.

Weird encounter. Not sure if it is a bug. I appreciate any ideas.