If now that youve left the groupchat your roommates just forget to invite you, even if that what they’re used to, that says A LOT about your friends. I disagree that sending you a message is “out of their way”, it takes an infintismally amount of effort to message someone a time and place. Also, messaging you just is not out of their way, its right in their path if anything. (Assuming they have any desire to see you)