Trying to figure out where, if anywhere, I went wrong here....

About a week ago I cold approached a smoking hot 20 year old Facebook friend that is easily an HB8 or HB9. Without going into too much detail she is a college student who participates in a college sport that is a sport I am heavily involved in (not with her or her college but in a separate capacity). This was my obviously my "in" I used in my cold approach.

We quickly developed a strong rapport and she was soon texting me and snapping me selfies all the time. This went on everyday all last week. At first they were quite innocent but gradually became sexier and sexier. I've been red pilled for 3 years so I've become quite skilled at building attraction and drawing women into my frame. At no time during our conversations over this past week did she mention the age difference.

She lives 2 hours away but mentioned she would be at a lake near my town on Saturday for the holiday weekend. On Saturday she started sending my selfies in her bikini from the lake. It was obvious she was drinking and was doing some hardcore flirting with me. By Saturday evening she was snapping me multiple full blown nudes. At this point its pretty clear to me she wants to fuck so I ask her where she's staying that night and if she wanted to she was welcome to come over and stay at my place since I was only 20 minutes away. She agrees and comes over about midnight.

She did the required "Ok but I'm not going to have sex with you" every female does which I just said that's fine. Basically as soon as she gets there we start making out. Eventually all of our clothes are off except her thong. When I go to take that off she gives me a soft no. I just said ok lets go to bed then. We start spooning to go to sleep and a while later she's backing up on me and ends up taking her underwear off herself and we have sex in basically every position imaginable. The next morning she gets up and leaves. I kiss her goodbye. Life is good.

Here's where things go sideways. A few hours after she left I texted her and asked her if she was going back home or staying in town another night. I was going to try to hook up a second date. She simply replied with a short "IDK yet". I said ok well if you stay in town you should come stay with me again to which she replied "Probably not. I'll probably just stay with my friend if I do". So now I'm like WTF but I just let it go and didn't text her the rest of the day. The entire day she doesn't send me a single text or snap...the first day since I started talking to her she hasn't done so. So finally at 9pm I texted her "Are you ok? You've been pretty quiet today?" to which she responded with a simple "Yep" and that's all. I responded to that with "Are you sure? You seem pissed." to which she never replied.

That was last night and she still hasn't responded nor have I sent her any other texts or snaps. Not sure exactly where I went wrong or where I go from here. Any outside perspective on where I went wrong or what I should do from here would be much appreciated.