I find that confusing, stressful, somewhat unpredictable stuff pops up in the therapeutic relationship right before and right after therapy breaks. I/we try to do all sorts of stuff to work through it or prevent it, but it still happens. I would encourage you not to make any big decisions about staying or leaving right now and instead focus on what you need to get through the break. It seems entirely possible that your T will go back to being/seeming like his usual reflective self after he's back and you have both settled in again.