<human>: I..honestly cannot explain this.

Been dating a girl for about 3 months, whom I met online. We clicked instantly, spent a few days traveling for New Year's, had many successful dates, have expressed our desire emotionally and physically. 

She was often the one to initiate the "I miss you's," the "I can't wait to be with you's," the "I need you" texts. Almost always. I used this as an opportunity to open myself emotionally to her.

This past week, she completely fell off the map. I saw her once this week, just a few days ago, for a hockey game, where I treated her to the game and food. She said she has been completely stressed with school and had to cancel plans for the upcoming weekend. Ok, fine.

I haven't heard from her since. No social media activity, no texts, nothing. I haven't been too clingy - one text wishing her luck, and another voicemail asking for her to check in. I feel like that is reasonable, given her disappearance. 

What exactly is happening? Is she really pulling a fade this many months in? Is she purposely disappearing on social media to make it look like a realistic fade? I mean, what the hell? How do you get that close to someone and then just...disappear completely?

I mean, this may sound insane, but at what point do I contact police? I have not met her friends yet, and only met her parents once, but I cannot logically explain this disappearance at all. Gone for days? Not one check in through text, email, phone, Twitter? 

It is driving me insane and I cannot understand it at all. Any help is greatly appreciated..

Give me a shortened version of the text
<bot>: Been seeing girl for about 3 months. Things have been incredible until she completely fell off the radar a few days ago. Starting to worry not just for the relationship, but for her safety. What is going on?