I guess I don't think that your therapist would have some kind of ulterior motive for asking about your lease. Seems more likely he was trying to chat about what he remembered you had going on... moving is kinda a big deal for some people. It seems like maybe you were concerned about the lease and projecting that feeling onto him?

I think when a therapist leaves for vacation clients often get mad. You even say above it feels like abandonment... my thought is that's probably the bigger issue going on. You showed to the last session late and drunk and probably a bit angry about the upcoming break. I would just think about it before reacting too harshly. Do you really want to no show to the next session, or do you want to get him back?