Deliria Addams
Testify!
How could Lorie sleep with her husband's best friend?! Didn't Rick and Shane know one another ever since high school? Yeah! s**t! Did she mourn him at all? How long has Rick had a crush on his best friend's wife, anyway? If I were Rick, I'd have been PEE-ODE!! It's stressful enough to wake up to a world full of zombies, but to finally find your family only to realize that your "best friend" has usurped your place! 1. Lori's husband was assumed to be dead. Some people cannot handle this. Some people cannot even handle a divorce. I mention divorce because when my parents broke up, my mother panicked and went to the first person she could: A man she was familiar with, a man who she trusted and a man who could take care of her and her children. Lori did the same when Rick "died". When your stability is taken away, you find a new way to stabilize yourself. Lori found that stability in Shane.
2. Shane kept them safe and took care of them every step of the way from the point where Rick was "dead" to the point where he came back into their lives. After a certain amount of time, the "I need you" turns into false (or real in Shane's case) emotions of "I love you". In a zombie apocalypse I imagine it would take less time for all of this to set in due to the constant threat of death and what have you...
That being said...OP: I hate the fact that Shane died. I really do. He was just getting interesting. I love it when a good character goes mad.