If you are asking what is going on...here's my take:

Civil to him is letting him have his way about everything. He's angry that he didn't get his way. He may also be trying to remind you that your "mouth" tends to say things that he doesn't like or want to hear. They tend to bring up stuff that's happened in the past and will not let you forget the wrongs you've done them (or so they think).

My advice, don't respond back. He's angry and he wants to get you riled up enough for you to come back at him. Step away and let him simmer in his pot of juices today.

Sit quietly, the answers will reveal themselves when you least expect them to.
The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.