Hi there and welcome back
Gosh oversleeping can happen....I do that myself the odd day too

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What I can offer for advice (from a woman's point of view) is to stop by and get a few pretty flowers....they don't have to be expensive...even 1 or 2 and try to have a smile on your face when you see her. Tell her you are sorry and leave it at that. Yes she may be still upset and then again she may not.
Try not to get into her mood...she may say and do things that upset you but all you can do is say you are sorry and leave it at that. It is up to her to want to accept and move on.
Let us know how you make out.

Heather
"The Pessimist complains about the wind, the Optimist expects it to change and the REALIST adjusts his sails." ~~~author unknown