<human>: Can you give me the gist of the text in a nutshell?

So since I've last seen her, my GF has not been responding to my texts. It all started last night, we were hanging out at my place watching a movie. Usually this is followed by a bit of sexy time, but she decided to leave early. She had work in the morning (not that that had stopped her in the past). This was also the first time she came over without getting all dolled up. Which, I'm fine with. Only bringing this stuff up because now my possibly overly-paranoid mind is taking these things as bad signs. But she was very compassionate and touchy feely the whole night so idk. 

But anyway, she goes home and i text her the next day at about 1 PM and she doesnt respond, but she's at work and stuff I understand that. Then I text her at about 5 PM and she doesnt respond. After this, I notice that she has posted on Instagram and made a story on Snapchat, so I know her phone isnt broken. So I text her again (last one) at 9 PM and she still hasn't responded about 2 hours later now. 

This is very unlike her/us. We usually text at least a *little* bit every day. Should I be suspecting that something is up or am i being paranoid/insecure?

What should I do?
<bot>: GF of 3 months hasnt been replying to my texts all day. Very unlike her. Especially because I know her phone works, as she has posted to Instagram and snapchat today. What should I do?