I agree just keep doing your own thing, be polite with him and so on if he comes to you chatting- this is a very positive sign. In my opinion, it's important that the actual interactions and time they spend with us- we are relaxed, happy, positive. And when you make these changes I truly believe they stay with you. I still keep doing the actions of DBing even though we are piecing.
And zephyr, can I just say I'm glad you read the lighthouse story too. That would get me through many a tough day- I still read it occasionally.

Stay strong, praying for you!!

Me 26 H 25
M 4
T 5
Baby born 4/14
BD: 1/15
EA: 2/15
PA: 4/15
reconciling: 4/15
ILYBINILWY- 11/15
ILY-1/16
ILYBNILWY 4/16
ILY 6/16
ILYBINILWY 6/16
Baby due 3/17
BD 8/16