So I [28 M] was basically sleeping around casually with girls in the 6-9 range while holding down multiple girlfriends over the course of 2 years. The girlfriends (not the FWB) I was seeing consistently over the 2 years were pretty high quality (8-9) but I felt I was a bit bored with them and didn't want to settle down with any of them. I wanted to try dating by doing it properly from the beginning, so I broke it off with all girls one by one.

Immediately after, I meet a very cute charming girl, very hot (probably a 9), 20 years old, and last week we went on a date that turned out much better than I expected. She was definitely not interested in coming back to my place (I tried a few times) but that was fine with me. We stayed out for almost 8 hours until 4am chatting and cuddling up outside on a bench and having a really good time. I was very surprised I hit it off so well with her.

2 days later she basically asks me out and we go get some food, and I bring her back to my place despite her being reluctant. We have a few drinks, and one thing leads to another, and we end up having sex that night and the next morning.

2 days later we go out again to see a movie, but she has work early the next day and she didn't want to invite me in her place because she had to get up early. I was a little thrown off by this but whatever, I understood. But then she also didn't want to kiss me after and I felt like she as starting to play games. So I drove home after the date and she left something in my car, to which she basically asked me if I could bring it back, and then when I said no, she pretty much said she's fiending for a back massage (hint hint). I wasn't going to drive back to her place so I just didn't respond and went to bed.

She came over today to grab what she left in my car, and I just played it cool talking to her by the door and after a few minutes she leaves. I didn't touch her or make any moves.

Her texts are friendly and overall she seems interested, however, the last couple of times I saw her I felt a bit disrespected and it's like this came out of nowhere (the games). We already had sex so I don't understand if I'm doing something wrong or if she's losing interest because I made myself too available? I'm definitely overthinking this because I thought we hit it off really well and got along surprisingly well, so I don't understand why she's pulling away now and acting less interested?

I'm absolutely not a fan of games (especially after the sex) and so what I do is I pull away and let them chase completely, or I just move on and sleep with other girls. What did I do wrong here? Did I make myself too available and go out with her too many times too quickly (3 in one week)? She seemed like she wanted to hang out so I don't understand how to remedy this situation given that she's playing games and distancing herself physically.