I wanna learn about where she was, what she was doing... I know one guy's her BF, and that's one of her pets, but isn't the other guy her brother and he was the other pet? Or am I wrong on that?
Mike is her boyfriend, Terry is a friend of Mike's. She did have a brother, but not sure if they ever cover him. I think Rick had a brother as well.
That added so much depth to her character that just is not in the comics!
Looks like you guys should check out
The Walking Dead Specials. Per the wiki on Michonne (covered in her special):
"Michonne was one of four children that included a brother and two sisters. She practiced fencing when she was a child, and briefly picked the hobby up again when she was in college to study law. After graduating and getting her degree, she became a successful attorney and married a man with whom she had
two daughters. They lived an average middle-class life in a suburban neighborhood, and often dealt with a troublesome teenager next door who she swore had once killed their cat and destroyed their fence with his katana. She spent much of her free time weightlifting and avidly following televised football.
She eventually divorced her husband and at some point started dating another man named Mike. She was out of town when the outbreak began,
she lost contact with her two daughters whom she had left in the care of a nanny, she does not know their whereabouts.
The story begins with Michonne running towards home, the street full of zombies. Michonne gets home and finds
her boyfriend, Mike and his best friend, Terry. When Michonne enters, a zombie attempts to follow, and in the process of killing it, Mike gets bitten. At that time, Michonne bandages Mike, unaware that he has become infected. That night, Michonne searches the neighbor's house for supplies, finding her trademark sword. She becomes pinned down in the house during the night and returns home the next day, finding that Mike and Terry have become zombies. She survives their attack and manages to lock them away. Her noisy encounter with them causes her street to become overrun, and she becomes trapped and runs out of food. Then, noticing that the zombies don't attack one another, she hacks off the arms and lower jaws of Mike and Terry, and chains them up to use them as escorts for an escape."