>went away for a week and she didn't even text until I
>addressed it 5 or 6 days later

Grounds for a quittal (c)

>she doesn't even want to meet at her place to head out but would rather meet at the party.

something she'd rather you not see at her place? hmmmm

>Says she's not good with expressing feelings

ROFLMAO...what woman in the history of humanity hasn't been good about expressing her feelings? FOH

>I text and she rainchecks.

First time ever? pattern? need more info

>any day in mind to reschedule for? No reply until Monday!

I'd have hit her with the "Can't. Busy" when she finally deemed you worthy of a reply and KIM

>Asking if I have plans. I'm like yeah I have plans so she's like >"sad face no one wants to hang out with me" so I'm like how about >later in the evening? "She says just kidding!!? Have fun.

The classic passive aggressive woe is me BS. RED FLAG

>We have a 4 day beach trip planned starting Thursday and come
>back Sunday. Am I walking into a trap? Like this is all just
>pretend to ultimately break up? Not feeling that.

At this point you need to turn into Iceberg Slim and be cold...no beach trip, no phone, no nothing. RUN NOW