and the thing is that dick *did* need tim's emotional support and help during the beginning of the batman reborn era because dick's life was also falling apart and they did need to help each other badly and tim leaving him to fix everything and handle the city and damian by himself *was* mean and a bit selfish, but also if tim had stayed to do this, there would have been no real chance for good independent growth for himself (in-universe and narratively speaking) and staying to help dick manage the city would have also meant deprioritizing his own wants and continuing to push down his own grief to do what's best for the greater good and ignoring both his suspicions and what he felt he needed to do at the time (search for bruce, prove himself right, have a breakdown around the world as he figured out his place in it) to focus instead on prioritizing what was currently best for current batman/dick's sake. which is just. kind of a continuation of what he's done/tried to do since he showed up in alpod. (would therapy probably have been a healthier option to move past this? well, yes, but unhealthy coping mechanisms or gtfo frankly) (anyways despite the fact he left to ostensibly find bruce, which is still batman related, leaving is still what allowed tim to get into situations that made him solidify himself as the person he wanted to be moving forth into adulthood + get to the point where he is still helping batman but also is starting to prioritize himself over prioritizing batman's needs so leaving was the objectively correct decision for himself)

anyways, they were both doing the equivalent of putting on their own oxygen masks first here instead of prioritizing what the other felt they needed at the time. and that's okay. they're both allowed to be a bit selfish at this point.