Black Friday

It's the day after Christmas and don't want to talk or interact with him in any kind of way but I feel like I'm being immature.  I'm really not a fighter or grudge holder by nature but yesterday really threw me for a loop.  I'm taking the advice to keep a journal and I've started a separate account for money left after the bills are paid.  I have another request for advice please.  How do I get through the "aftermath"?  I'm thinking I should just stay focused but I can't not interact pleasantly in here that's just cause for more trouble and to make the situation worsen.  Is anyone already working through this part that can give me any pointers on how to keep my sanity?  Thanks...