You made one mistake in the office. It was pretty big and would've costed you your job at the office. Luckily, Garrison covered for you and took care of it. However, he's not the kind of person to do something good out the kindness of his heart.

In return, he's been dumping his work on you three days a week for months. You've become swamped with work that you and he both need done, meanwhile, he spends his time gossiping in the break room with his "work besties" as he calls them. When he's not gossiping with his friends, then he's calling the next gym rat he's planning on sleeping with. It's becoming annoying to you. You made one mistake and now are forced to deal with months of extra work, while he gets to slack off and do whatever.