I'm preparing myself for a break up, or at very least, an attempt to ask me to be patient or put me on hold. I'm feeling pretty resolved not to let that happen. I am afraid I might grow to resent him if I agreed to do that, not to mention I'm anxious to move on with a positive life.
Can you be "on hold" with them and also move on with a positive life? Do you have reasons you can't or don't want to pursue other relationships while they take time to reconnect? I think it would be unreasonable for them to expect you to remain an absent and abstinent member of a closed triad with them, so it would seem to be up to you and your feelings.