I’m unsure how her sadness (potentially it relates to OM) is your problem.

She is sad because she’s stuffing her life up and making crap choices 🤷‍♂️ So sad, too bad.

LH19 is absolutely right.

“I can understand how you might be feeling overwhelmed at this time of year. That sounds tough.”

“Oh well, I’m going out with my mates to a bar. It’s happy hour soon!”

And then walk out, in new clothes, with aftershave on and a grin on your face!