Year
It'd been one year. One year ago he left the Citadel. One year ago he came to Omega to right wrongs. One year ago he formed a team. One year ago she died. That one stung the most. One year all on his own. Without her.
That night, with his team, they all did a toast to Shepard to honor her memory. Garrus had told his squad he served under her. He told them how close he was with her. How she shaped him into the man he is today by showing him his mistakes and helping him learn.
"To Shepard!" they all chanted. Glasses clinked and chattered erupted among the men. Garrus was with them for a bit, but about half way through the ceremony he slipped off to his room. He wanted to remember Shepard his own way.
He looked up towards the ceiling and thought of what to say.
"I hope you're doing well up there Shepard. Keeping an eye on all of us, I assume. This is for you by the way. Hope I'm making you proud. I'll see you up there one day".
He took a sip of his drink which was pretty decent considering it was from Omega and almost everything tasted like shit. For the rest of the night, he let his men have their fun while he hung his head and mourned his friend.