Been on 2 dates with this girl. Playful flirting and touching etc and texts about “fighting” me etc.

We split the bill every time for drinks and food. Haven’t escalated to a kiss or sex.

However every time we meet; she has a time constraint of a few hours to be with me before having to leave so it makes it harder to escalate

How can I escalate if she has to leave within 2 hours after these 2 dates because she has to help out with family stuff.

Is she just using me for validation?