<human>: I just started freshman year of college at a large university about a month ago.  I don't drink for various reasons, so it was very difficult to find friends the first weeks and very sad/lonely.  About a week and a half in, I met "Brynne" through a friend of a friend of someone on my floor.  She's very intelligent, much more cultured than me, and moderately attractive.  We've been hanging out a lot since then.  No one else here has gotten along with me that well.

Now today, my family came to visit, and I invite Brynne to come with us to go on a hike/dinner picnic.  It was pretty fun, everyone got along, whatever.  But then, we got back to my room and decided to watch a movie; one thing lead to another, and three hours later we were still feverishly making out.

It wasn't bad.  Naturally, it felt good and seemed like a decent idea at the time.  But while it was going on, she would randomly say my name or talk about how I'm her best friend or call me by some pet-name like "honey" or "sweetie" which seemed a little odd.  Now I'm filled with regret because I think she may be really attached to this romantic idea, while I'm not sure if going beyond platonic is a good idea.  Also might help to note that she said she had been waiting for me to kiss her, and she "knew it was going to happen tonight."  Brynne would be sleeping next to me right now even, if my roommate hadn't come home about an hour ago.

I'm afraid this is going to ruin our friendship, the only good friendship either of us have on campus.  Is she crazy?  Am I crazy? What the hell just happened?

Can you give me the gist of the text in a nutshell?
<bot>: I (18M) made out with my closest friend (18F) at college, and it seemed like she took it way more seriously than I did.  I don't want this to ruin our friendship.