What does this mean?? I got a girls phone number?

At the bar and i txt her saying hey she replyd 4 hours later sayinng sorry she had familu stuff and when she textd me i was asleep so i text her this morning and still no answer from her? I mean we havnt had a conversation yet. I even said this morning i had a fun time at the bar hope i didnt make ya feel uncomfirtable :) jokingly, it really seemed like she liked me at the bar but now shes barely textng me, its been 2 days since the bar? Ive been in a relationship with my ex for the past 2.5 years, im rusty at this single stuff.! I wud think if she liked me shed be textng me alot??So any ideas? Really wud appreciate any help, thankss.