I wouldn't do a gift. Here's why - you don't reward bad behavior. She coped by leaving and going dark, her choice. She's your wife still. That's not how a "real" wife would act. She's right to be hurt by you but you aren't going to chase someone behaving badly towards you. She wants time alone, she's got it - agree with her. She needs to see that her drama is her drama, you are carrying on just fine without her. When she wants to talk you will know.
Watch "The Quiet Man" with John Wayne this weekend, see how he deals with CB and his wife's response. He agrees with her and he lets her go at the same time. Catnip.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.