<human>: I've gone on four dates with a girl over the past month, sleeping together after the third. As far as I can tell, everything has been great and I'm starting to fall for her. We both haven't been dating other people since meeting each other and usually talk on the phone (not necessarily every day, but usually we have some kind of contact each day). However, things started seeming...off and I want to see if I'm going crazy.

Earlier in the week, we had talked about New Year's plans and agreed that it wouldn't be weird or too soon if we were to hang out on NYE. Specifically, the talk was about her inviting me to a friend's party.

I was happy with that discussion, but as she was leaving my house at ~7pm on the 31st, she said something along the lines of "see you next year" implying she wasn't planning on spending NYE together. 

At about 8:30, I texted "I'll be at my friends' house but plan on staying sober and driving if you want to meet up later. I'm not sure if you were avoiding it" to which she responded "Not at all I swear! You owe me a NYE kiss mister."

We had talked a bit thoughout the night but didn't see each other, and I texted her the next day (Jan 1) asking to hang out before I work on Monday. She usually responds very quickly, but I didn't hear from her for ~10 hours despite viewing/sharing snaps and opening a link I sent on facebook from the night before.

We talked for a bit and I casually mentioned that I felt like I was being ignored and asked if anything was wrong, to which she replied no. She then got offended that I "accused" her of ignoring me. I apologized for wording it harsher than I intended and reiterated that I wasn't upset. She didn't respond to that text and we haven't talked since.

Should I reach out to her today, let her make first contact, or move on? If I reach out, whether through text or a call, what should I say?

Could you distill the essence of the text into 1-3 sentences?
<bot>: last minute NYE plan changes led me to question an otherwise blooming relationship and I don't enjoy feeling clingy.