Aw, Stephen can't just drop Tad and Amy at the drop of a hat! If they were that unimportant to him, he never would've considered leaving Jon for them in the first place.

No promises about the hypothetical next installment; all I'll say is that Jon and Stephen have gotten through the worst falling-out they could have had and come out on the other side with a happy and comfortable friendship. That level of caring is going to be rock-solid for the rest of their lives, and without needing the help of a mental link imposed upon it from the outside, either.