Alex Karev in a scene from the May 13, 2010 episode of Grey's Anatomy. He's really come a long way this season in so many respects.
Who knows what's up with Alex and Aaron Karev, but it's clear there is bad blood, or at least animosity, and we will find out more soon enough.
Alex and his brother Aaron come to blows in "Sympathy for the Parents," the April 1, 2010 episode of Grey's Anatomy. Looks like they have kind of an uneasy relationship!
Alex Karev drops Aaron Karev in "Sympathy for the Parents," the April 1, 2010 episode of Grey's Anatomy. What brings out this side of Alex?
Alex and Aaron Karev get into it. Wonder what about!
Bailey tries to get in the middle of a Karev rumble. That may not be her smartest idea ever.
Arizona and Alex in a photo from "Perfect Little Accident," the March 4, 2010 episode of Grey's Anatomy. We can't wait for the episode's return.
Alex looks on as Derek speaks. Lexie can be seen behind him.
Will Arizona bring Alex back into the pediatrics fold? That's the rumor going around!
Arizona, Alex, Cristina and Owen look on as Derek addresses the staff for the first time as Chief. How will they react?
Alex and Lexie are on the move. To somewhere. Where, we will soon find out February 4.
Alex poses for his third grade class photo. Just kidding, but doesn't it look like one of those backgrounds?

Grey's Anatomy Quotes

Did you say it? 'I love you. I don't ever want to live without you. You changed my life.' Did you say it? Make a plan. Set a goal. Work toward it, but every now and then, look around; Drink it in 'cause this is it. It might all be gone tomorrow."

Meredith (closing voiceover)

Lexie: [narrating] Grief may be a thing we all have in common, but it looks different on everyone.
Mark: It isn't just death we have to grieve. It's life. It's loss. It's change.
Alex: And when we wonder why it has to suck so much sometimes, has to hurt so bad. The thing we gotta try to remember is that it can turn on a dime.
Izzie: That's how you stay alive. When it hurts so much you can't breathe, that's how you survive.
Derek: By remembering that one day, somehow, impossibly, you won't feel this way. It won't hurt this much.
Bailey: Grief comes in its own time for everyone, in its own way.
Owen: So the best we can do, the best anyone can do, is try for honesty.
Meredith: The really crappy thing, the very worst part of grief is that you can't control it.
Arizona: The best we can do is try to let ourselves feel it when it comes.
Callie: And let it go when we can.
Meredith: The very worst part is that the minute you think you're past it, it starts all over again.
Cristina: And always, every time, it takes your breath away.
Meredith: There are five stages of grief. They look different on all of us, but there are always five.
Alex: Denial.
Derek: Anger.
Bailey: Bargaining.
Lexie: Depression.
Richard: Acceptance.