If he's outright asking you if you want a D....I don't know if its DB, but I say being honest is best
"I would still like to work our marriage, but I know right now that may seem impossible"

Since you sent the text, I'd say let him have space to think things through and try not to worry about it.

me: 30 H:30
tgthr:7 m:4
no kids
5 counseling sessions initiated by H as a LR: Oct 2012
long distance marriage b/c of work since Nov 2012
official BD: July 2013
nothing filed
1/1/14 I dropped the rope