<human>: Provide a brief overview of the text.

I just met this girl on a sunny day who was walking towards me right then and there we exchanged numbers and then after 3 hours she called to meet me and we end up making out near our university lake, I got in to this romantic mode thing and I said I have this first sight love with her.

She met me again after that day and I bring her to my room for the "coffee" we started making out and while I was removing her clothes she gave me this weird look and said she has never done it before and this is too fast for her (she is virgin). I was too horny to stop I ended up touching her body with my hands she seemed nervous and undelightful with that she asked me to stop because she wanted to go back to her dorm before it gets closed, so I let her go. 

Now I think it was really too fast for me to do all that I am currently single but I think this girl is really too young for me and seems over emotional and over attach and I am afraid she might get hurt in this, so I decided to stay away from her. She asked me to meet again after that day and I refused. I know I am too old for this but I have never been into a situation where I have to control myself like this and let other know what is good for her.

Please advice how do I tell her that it was too fast? Is it better to talk to her about this on the message/IM or talk to her physically which one is better?
<bot>: I over excitedly told 20y old girl that I love her in first sight but now I think it was too fast. How do I tell her about it as she seems a little immature?