She flinches, just a little. Not because she'd read Greta's tone as particularly angry, but because she didn't mean to lie about it. It'd just sort of popped out. She really didn't want Greta to worry, but she's so obviously not fine, and she's been trying so hard to convince herself that she is that'd turned to that before any sort of explanation.

She sighs and rubs her face.

She hesitates, then tries, "It's... I just..." She stops and sighs, this time in frustration. "Nothing I say is gonna sound good enough," she explains. "It's all just excuses."