Bit of back ground my gf and I work almost opposite shifts I work 0400-1400 she works 1200-2200 both Monday through Friday, (yay for weekends)

I tend to stay up till she gets home from work to spend some time with her in and nap in the afternoon to get a few extra hours sleep, I get up for work about 0315 and we recently bought some black charcoal toothpaste only issue with it is it stains the sink, and I’ll be honest at 0315 I’m not the best at rinsing the sink, I’m practically a walking zombie at that hour, this has caused a few minor telling off from my gf to clean up after my self, and I get it hard black toothpaste in the sink isn’t ideal for anyone to look at, 

This morning we’re just getting ready to go out for a bit of shopping and I’ve yet to brush my own teeth, ( 1330 grim af I know) in the sink is dry hard toothpaste now I know it’s not me I’ve not brushed yet, so I jokingly mention it, in an I see you point way, well all hell broke loose 🤦🏻‍♂️