NO, NO AND NO. She's seriously got problems and she's dazzled you by hitting you straight in your ego ~ with rejection. Don't try to contact her... listen to your gut that was telling you to back off from her. Guts never lie... ego do ALL the time.
More settled and serious????? What the hell are you talking about. You've not known her for more then 24 hours total time spend together and she's demanding you give her more affection. WTF. BEWARE! She really does ring the BPD bell even with the little bit you know about her and have shared with us.