Everyone wants a challange, no one likes something that comes easy, even girls.
I get your point a little bit, I dont like easy girls, but its not the biggest deal and it is not such a turn off that I loose my interest because of it, if you know what type of girls you're after why would you loose interest if she is easy? It is less gaming for you because she was obviously interested in you too. So either you go for any girl you get, or you are scared of taking that akward next meeting.
I dont think it has anything with being to easy.
I felt the exact feeling once, I had this cute girl, amazing dancer, probably good in bed too. She was funny, flirty and everthing. I macked her easy, it only took 1 minut to get it in, as soon as I left to talk/dance with another girl, she pushed this girl away and grabbed me, that was not the problem, for me that is sexy, maybe a little disrespectful, but still very sexy because she marked her spot. Then she dances with me and then tell me, you can go to her if you want to. When she said that she lost my interest, I dont like that she is jealous when we only met like 5 minutes earlier.. That is a good reason to loose interest over, not by thinking shes to easy.
