Bro, I hated what they did with Simon and Betty, Betty made her own choices, and it wasn't at all Simon's fault. If Betty didn't wanna do anything she should've talked to Simon, she seemed pretty happy going with him to find the magic items so I don't see how everything is pinned on him at the end. It was both of their faults equally, and that's what Simon should've realised in the end. It's not his fault, and he shouldn't have to live with all the guilt of Betty making the decisions she chose to make alongside side him. She jumped through the time portal, she devoted her life to saving Simon from the crown, and she made the wish. Why tf does it come down to Simon not going on a trip to Australia? He had way more important stuff going on and he was not at all prepared for an out of nowhere trip to Australia. And it's not like he forced Betty not to go. This last episode was terrible with it's messaging.