I think a lot about how q!Tazercraft's relationship matured during QSMP into being more separate people. A lot has been said about Pac and being forced to spend months away from Mike because he was kidnapped and in a coma and finding new connection with Fit, Tubbo, Bagi, Ramon, Sunny, Empanada and renewed connection with Richarlyson and Cellbit (for a time).
But when Mike came back for good they noticeably spent less time together to the point where they stopped even seeking each other out.
Pac went off to the friends and family he'd made in Mike's absence. Mike, though, dedicated most of his time to Richarlyson. For much of his early time on the server, Mike avoided having to be alone with Richas because he'd lost his first life when Mike was the only one watching him. They got closer building the Esconde Esconde and especially the Murder Mystery arenas together so when Mike came back the person he wanted to see most was Richarlyson and they spent much of their remaining time on the server building together.
Another thing that happened is that Mike got closer to his goddess to the point of building a tribute to her as his final project for all the server to see. He also got close the his Purgatory team and closer to BBH and made friends with YD and in general seems less angry and more settled. Like don't get me wrong, Mike is still fiery but he seems to have had a calm peace to himself in the end. More than when he crashed on Quesadilla Island in my humble opinion.
Pac and Mike will always be close and share a soul. They are meant to be together, but I feel they've both matured their togetherness to the point where they can grow separately and still be Pac e Mike.
