Completely understand that, but I really don't think you'll be ruining her weekend. This is what she's there for, and it's not like you're contacting her over a broken nail.
I don't know enough about dissociation (even though I have it myself sometimes, to a much less degree), but based on this:
it sounds as though you're concerned about what could happen between now and the time you see your therapist?
I don't know what the right answer is about emailing the guy. Guess it would depend on how you left things off with him when you "came to." I don't think it could hurt to tell him to ignore any future contact from you, that you're just going through a lot (without getting into details), and are not actually interested in any kind of romantic relationship with him even if you email him and say that you are.
I don't know enough about dissociation (even though I have it myself sometimes, to a much less degree), but based on this:
Do I email this guy back and apologize and explain so it doesn't happen again?
it sounds as though you're concerned about what could happen between now and the time you see your therapist?
I don't know what the right answer is about emailing the guy. Guess it would depend on how you left things off with him when you "came to." I don't think it could hurt to tell him to ignore any future contact from you, that you're just going through a lot (without getting into details), and are not actually interested in any kind of romantic relationship with him even if you email him and say that you are.