I am a father and my daughter has a friend who she met on the internet and has an interest in him?

So I have a daughter who is 11 years old, and she is really smart for her age but I am scared that she made a terrible choice. She has social anxiety and the thing is, she finds it easier to talk to people on the internet than to talk to people in real life. I don't understand why but she is just like that. Apparently, she had made friends on the internet through Instagram and Google+ along with Tumblr. Here is how I found out: I was laying down right next to my daughter on the bed. It was the middle of the night and neither of us were able to sleep. I tried to cuddle ourselves to sleep but it didn't work. We then began to talk. After asking each other a few questions, I ask her what she always did on the internet that made her so addicted to it. She casually responded with "I just talk to friends on there". When I asked her where she met those friends, she said on Google+, Instagram, and Tumblr. I then became over-protective and began asking her questions about these friends. She had 6 close friends, the rest were just regular friends. There 3 friends on Google+, one was a boy who she would speak to at least once a week, 2 were girls who she spoke to everyday. There was 2 friends on Instagram, one was a boy who she spoke to occasionally and one was girl who she spoke to everyday. Then she had one friend on Tumblr who was a boy who she spoke to everyday. He was the one that mostly caught my attention since when she spoke about his name being X, she began to blush. I got worried and asked her questions about him. I asked her how she met him and if she knew how he looks like. She said that she met him on YouTube when he tried to make a YouTube Channel. She was interested in him so she decided to give him her Tumblr Username and they began talking there ever since. Apparently, they were really close. She also said that once they started moving conversation to google hangouts, they would video chat a few times every month. At least 4 times. I began to get paranoid and asked her how old he was. He was 12 years old. I asked her what other things she can tell me about him. Apparently, they would create silly nicknames for each other like Pan Owl and Bipolar bear and many more offensive nicknames. They also had this one plan that really took my interest. They had planned that when they both turn 18, she would move to the UK in London from NYC, where we will be moving to sooner or later, and X would move to London from Manchester, where he already lives, and then they would live in an apartment together and start a YouTube career. That was their dream together. I asked her if she liked him more than just a friend and she said no but stuttered, which meant that she liked him. They never met each other in person though. I don't know what to do. They stay up late talking to each other when no one is home, like at 3 in the morning, and would joke about inappropriate things. What do I do about this? I am worried that my daughter might become a victim of an online predator since it has happened many time..... Every time I warn her about it, she keeps telling me that she doesn't want to hear the whole lecture and already knows about it. She tells me to trust her and let her talk to him but I don't know if I should. via /r/Parenting http://ift.tt/2vHbaPj