Lately things are going like this.

First I meet a girl then we go out for a coffee (getting to know each other) a game of pool (easy kino) and a walk to the beach/town centre. Generally I am trying to get her threw more venues so it will seem that she knows me longer.

But then 2nd and 3rd date come. I escalate, try to aim for their or mine place ( I am 18, South-East Europe, very conservative...) and in the end nothing happens. Then they hit me up if you want to be my boyfriend or they go to their friends saying "He only wanted to fuck, but I was ready for a relationship"?

How do I avoid these scenarios?