If a girl says "leave me alone" because you screwed up does she really mean it? Should I give her time to cool off then contact her? is there no hope?

My friend Julie is pissed at me and cut me off rightfully so. I was kind of an ass and played with her feelings. I like her too but Im not sure what I want. she's a bit older than me and Im worried about things like what if she wants to settle down adn get married and have kids sooner than me, what if she finds me immature, what if I just want to play the field for a little longer? she says she's not in a rush she's focused on her career, enjoying life and she wants me to enjoy my life too but recently we got into a fight and she told me to leave her alone and stop talking with her and stop playing with her feelings and confusing her. so i totally screwed up but does she really mean it? do girls really mean it when they say "leave me alone"? i dont want to lose her but i dont know what i want.

If a girl says "leave me alone" because you screwed up does she really mean it? Should I give her time to cool off then contact her? is there no hope?
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