@Nom de plume,
Nom de plume wrote:
There are trolls everywhere anymore.
That's not even English.
To the OP:
As CoastalRat said, over and over again, we don't know WHY she stopped contacting you.
I suggest, however, from what you've written, that you didn't give any indication of interest in her as a female (other than the 2 cuddling episodes) for her to want to continue your 'studies'. You appear cold or uninterested, while she clearly (i.e. the cuddling episodes) was. Why did you
cuddle with her if you weren't interested?
I think she was interested, thought you were (due to those two episodes), and when she saw you were unmoved, unemotional, uninterested, decided she was wrong and left.
If you care for her, and it seems that you do from all the energy you've invested here in this, plus coming here in the first place, then you should head on over to her house, since you don't have her phone number, and speak to her in person, as CoastalRat and others have suggested. Go to the source and find out what's what.
Q: Why would you kiss and cuddle someone you don't care for and aren't interested in?
Q: Why spend so much time trying to find out her motives if you're aren't interested?
I suggest you ARE interested, otherwise why study with her, kiss and cuddle with her, and then spend time trying to find out what went wrong.
The first and most important thing you have to do in life is be honest with yourself at all times and fact the facts. Face the music. Face yourself. You've been playing games because of insecurity or other issues and you don't want to admit it. You DO care about her and why she up and left.