That must have been frightening for your wife, even though you say you "launched it at the wall"
If you have read any other threads on MN, you will know that men are frightening when they display violence even to inanimate objects, because it displays that men could do it to the woman, if they wanted to
And you can't say you never lose your temper, can you? Because, you just did.
You need to apologise to your wife.
Then you need to leave her alone, until you can mutually agree to talk together.
You have been back in the house, what, one day, and you have tried to engage with her (when you said you wouldn't) and then, because she didn't do what you wanted (drink coffee you decided to make for her) you threw it at the wall?
I am sorry for what has happened to you over Christmas, but I do have to wonder, do you often get angry if she doesn't do what you want?