That deserves a drink
A couple months in Glados' mazes are enough to make anyone miss Stacy. Samus is no exception to that. Whether she liked it or not, Stacy was where her life was now. She had obligations there. She had responsibilities there. And damn, she actually cared about the crew here. She was genuinely glad when the AI spit her out of the mazes.
So for her own private celebration, Samus went to the tavern. She managed to avoid running into anyone on her way here. As much as she did care about the crew, her own mental health and peaceful alone time are important too. Opportunities to do absolutely nothing didn't come along too often for her, and Samus was not going to waste this. She sat down with a drink in the tavern to enjoy a couple more hours of solitude before going back to being a proper crew member. Sure, someone was bound to realize she was back eventually, but until one stumbled into to Drunken Dragon and found her, she could go on not-existing to the rest of Stacy's residents.
So for her own private celebration, Samus went to the tavern. She managed to avoid running into anyone on her way here. As much as she did care about the crew, her own mental health and peaceful alone time are important too. Opportunities to do absolutely nothing didn't come along too often for her, and Samus was not going to waste this. She sat down with a drink in the tavern to enjoy a couple more hours of solitude before going back to being a proper crew member. Sure, someone was bound to realize she was back eventually, but until one stumbled into to Drunken Dragon and found her, she could go on not-existing to the rest of Stacy's residents.