Yo. So i've had an open relationship with this chick for some time now, hooking up for weekends, we got emotionaly closer together with time, on friday and saturday she even overslept at my place.
She really has a good game, but i was usually able to read her quite well. Now i hooked up with some other chick few weeks ago, genuienuly told her about it and seems like it didn't bother her too much.
So like i said lately, i thought we're getting really emotionaly closer, she was taking more initiative for kissing me, she acted like my gf in front of her friends even (kissing me holding me for hands etc.).
So after she left my place on sunday(she went on holiday with her family), i kept small texting with her (like 3 texts per day).
Now the last reply i got, really surprised me so here's some of the convo:
Me: We're having a 1st may celebration here, you got something similar down there?
going out with my mates so catchya :*
Her: Lucky you, I'm stuck forever alone here with only grandmothers so no party for me tonight.

Me(Next day at noon): Beachvolley, lake, good food, music, sun and fun people. Beat that!
Her:I'm not jealous because I've found some cool peaople too. Probably going partying out tonight. P.S. have fun, find yourself a hot chick and make rollercoasters with her mouth.

)
Now like i said from her behaviour lately i really thought we're getting close (really acting like i'm her bf in front of her close friends is something i'm not used to when only hooking up with one, waking up with me and cuddling before leaving etc.) Can't see what she wants to say with that P.S. part honestly, is she trying to get back at me for hooking up with that other chick by implying she's gonna hook up today so i should too? I really can't read this one -.-
Any opinions?
Also should i even reply to this, i plan to ignore it since i'm going on holidays tommorow anyway and just call her to meet up next week. Thanks in advance.