The girl i like is ignoring me?

well 2 days ago she texted me at 1:00am saying "Heey :]", soo i text "Heeyy, Wats up?", but she didnt answer, so i called her "and it sounded like she was with a group of people, but i didnt care. so i asked her what was she doing, she said she was watching funny videos on youtube. so i told her a video to search up, and she was laughing like crazy. but then she tells me she'll call me back, so i said ok. but i wait 45 mins, and i get no call back, so text her "heyy ima knockk tha **** out, I'll text you tommorow :]", so she reples "Kk G'Niight :], and i replied "G'night :)". that was the last time she replied to my text, I've tryed to text her like crazy but she doesn't respond. btw i know that she likes me back because we've broke the touch barrier, and we kissed, but now that im trying to ask her out, shes ignoring me. any ideas?