I finally watched it tonight.

i agree with what u said about Ryan. him talking about his mates, it'll be better for the storytelling if we see what led to that decision. because as it was shown, it felt like "out of the blue" even if we know he has moved on from the doctor in the past months. the bicycle scene is them enjoying normal life as ordinary people would. cute scene.

So jack is back. and then he was gone no goodbye no nothing just a call saying he's visiting Gwen. i hope this wasn't his last appearance. Bringing him back after so many years and then have him leave this way would be a letdown.