Ultimate X-men #4 Marvel Comics (2001)

In the wake of the team's first big mission, Professor Xavier's students are on the verge of mutiny! One of them has been left in a coma, one of them has been emotionally crushed?and one will leave the group in anger! And, in the midst of these crises, Magneto's first major assault on humanity looms on the horizon!

Magneto ends the battle and sends the X-Men home to care for thier injured. Cyclops sees Wolverine kissing Jean outside and leaves to join the Brotherhood.