Very interesting. I also read that LE wanted CW to provide them with the code to his garage, so they could get inside. He didn't give it to them and said he was on his way. Hmmm - It doesn't sound like he wanted LE in his house until he could be in there, too. JMO, perhaps he was thinking he could control what they were looking at in the house.
I think he thought if he rushed home she might not call the police. A little quick (not his strong point it seems) thinking to put her at ease would have helped a lot. Instead he has no idea where she is and tells her they are seperating.