Bright, I think job is right. Your h is just trying some new things out or didn't want to bother anyone for a ride to the airport. My h was stuck in a rut for work and shortly after he started into his mlc he told me that he was taking different buses and a new route to work just to because he was tired of doing the same thing every day. So I wouldn't read anything into it. He may be trying to recreate himself so it could actually be a positive thing. Hang in there, he's just taking longer than some to work through his issues.
I will update on my own thread if I can find it but as you might suspect the ow drama escalated more than anyone would have expected. It's another short novel!
Me:57H:62 M:34T:35 2S,2D (grown nlah) BD:09/2012 visits M ow EA/PA?:10/2012 H moves out 06/2013
"Do not let the behavior of others destroy your inner peace." -Dalai Lama