>>713898810
I'll add to this: Sans is actually mistaken about you. He thinks that you're the sole cause of the constant temporal anomalies, when in fact he'd been tracking Flowey's bullshit all along.

>>713866912
>Why Sans get mad at me
I'll note that Sans is being a bit of an idiot when he fights you. He's mistakenly assigned blame for Flowey's timeline bullshit to you because he doesn't know that you only got the ability to SAVE and LOAD only a few hours ago.