MW and Jessica were engaged when Jensen comes into the scene.

No way! I didn't know that!

There were reports from the set that if Alec had more lines than Logan, MW would pitch a fit, and scenes were rewritten because Max and Alec were too close together

Holy cow! Man, that must've been a miserable set for Jensen to be working on. I mean, none of that was his fault, you know? Poor guy! SPN was definitely the best thing to have happened to him, that's for sure.