<human>: Can you give me a shortened version of the text?

Ok, long story short, me and my ex did not have the cleanest break up. We dated for about 5 months, was extremely positive until the breakup. A month of hot and cold behavior I decide to go home with my parents down south for the summer.  Flash forward to this month, about 5 months after i last saw her in May, I try to avoid seeing her and contacting her to give her space, but since we share mutual friends i run into her in some situtations.  I act civil and cordial and do not really talk outside of "hi" and "how are you"   but everytime she contacts me it has been spiteful and rude.   She says "come hang out with us and the dance floor but stay the fuck away from me" after clearly I have shown to not really give her attention, she snaps at her friends for me hanging out with them, and is generally acting like an immature brat. I avoid her when i can but in some situations she is just right there and it makes no sense to me that she would be acting this way after 5 months of no contact.
<bot>: after 5 months of not talking, her first few interactions with me have all been negative, no clue why is she acting this way