My girlfriend threw her jacket at my face..

I immediately dumped everything on the ground, turned around, and left without looking back.
That day, a group of friends went out to play.
I was holding her jacket, and I had her bag on my back.
All the stuff we bought along the way was also in my hands.
She had both hands empty, chatting with the girl friend who came along, and she was having the time of her life.
I didn’t really feel like anything was wrong either.
Because I thought, it’s pretty normal for a boyfriend to help his girlfriend carry a bit of stuff.
Anyway, these are just paper-thin skills—if they can’t even twist open a bottle cap of plain water on normal days, then don’t expect them to carry big bags and small bags.
Later, they chatted more and more enthusiastically, talking with flying eyebrows.
When they talked about lipsticks, hers was almost about to fall off; she wanted to touch up her lipstick.
She turned her head and said to me:
“Help me hold the lipstick.”
I lowered my head and searched through her bag.
I handed her the jacket as well, saying:
“Take this first. I’ll free up my hands to get it, and once I’m done you give the jacket back to me.” (At that time, my hands were full of stuff.)
The result—one second later, she didn’t even look.
She directly threw the jacket back at my face and said:
“Why are you making such a big deal out of just holding some lipstick?”
I froze for a moment then; I didn’t say a word.
I threw the bag in my hands, the jacket, the shopping bags, and everything else onto the ground.
Turned around and left.
All the way, she didn’t chase after me.
I didn’t look back either.
Later, a mutual friend (her best friend) told me:
She cried all night.
I didn’t feel any sympathy.
I just felt like she thought
that since I did all this for her, it was only right—and in the end, we couldn’t continue and broke up.
If it were you, when the other person throws a jacket at your face, would you keep going with the relationship?