Hmmm.. your post has just sparked a thought... okay try this on for size..
I was thinking.. and my mind is now going wild.. this possible scenario, what do y'all think?:
-who knows when, or even IF she ever returned to her home in Calgary after her trip to Edmonton where she was last verified to have been seen
-Mr.Perp does away with her at some point between when she was last seen in Edmonton, and 9-10pm Nov 26th
-Mr.Perp keeps the phone, and obviously also has access to everything else that she owned, including bank cards/credit cards
-Mr.Perp gets home at 9 or 10pm and drops off in SB's bedroom, her bag that she had, or something.. to prove that she returned home
-Mr.Perp makes a couple of FB posts, and perhaps other private msgs/txts from SB's phone around 9-10pm - a regret at missing something she had never signed up for.. a romantic entry.. responds to any texts/msgs that SB may have had sitting there waiting for a reply..
-Mr.Perp goes to a couple of places and buys something, or gets a cash advance on SB's credit card, or otherwise uses her bank card in person, sometime before texting himself or calling himself
-Mr.Perp takes SB's phone just before 12;30am and texts himself to say 'hmm, think I'm going to take off to Vancouver', or.. 'I'm done here, I'm leaving', or calls himself from her phone to say same thing
-Mr.Perp goes on with life as usual, either living at home, or staying somewhere else.. until finally the family notices her missing and calls him at work on Monday, December 1st to ask if she is at home
-Mr.Perp
races home (yes, sarcasm) after work on that day to go to their shared home, where he finds the phone, puts his hands all over it, and lets the family know she isn't home but her phone is still there, and look, see? It says she called me/txtd me just before 12;30am when she told me she was 'leaving'.. which is just before I heard the door slam behind her when she left
-LE are confused, because family is telling them it is highly unlikely she would leave and not be in touch with her family and many friends, and they believe them, however she had told her ex that she was leaving
-Family puts up posters where she supposedly spent money last;
-Family and LE do a press conference to appeal to anyone who may have seen her after 12;30am Nov 27th
-SB's sister reports that even though they were going through a messy divorce, they still got along quite well.. but SB may have been in distress (because Mr.Perp told them that SB told him she was leaving, and look, it can be proven because here is the phone with her final text on it still, and that is just not LIKE her, so she could have been in distress when she left)
(or... change it up so that the card(s) was used sometime AFTER 12;30am instead of before....
Could she have arrived home shortly before sending the text about being too late for Yuk Yuks? She posted about "funzies" at 10:06. She was last seen at 12:30AM, 2.5 hours later. It's a 2.5-3 hour drive, depending on the driving conditions and speed, so conceivably she could have left at 6, arrived home at 9, cancelled her evening plans, posted about funzies on Facebook an hour later, and then about 2.5 hours later vanished.