Should i just treat girls like crap?

So im not a guy who just wants girls for sex. Like itd be cool but its not my only goal. And there are many guys who only want girls for sex who girls go for.

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Im a genuine guy. Im not overly nice but im also not mean. im sincere in everything i do. But every time i get rejected by a girl no matter if we've been talking a short time or a long time they always say i only wanted sex. I am extremely shy so i have never made a move for sex. the most ive done is asked a girl if she wanted to make out and she laughed about it and said no. I message her after and like a week later she bring sit up again saying im a pig and all i want to do is hook up.

Like im not that type of guy. If i wanted to hook up id say that. But i always get accused of being that guy and im sick of it.

Im figuring i may as well start acting like that if thats how theyre going to see me regardless.