Why do women assume I'm a tool?

ill put some info this time. i dont wear ed hardy, sleep around, or go to clubs every weekend. the only things i do i lift weights but im not a dumb meat head its just a hobby,im more of a hermit then anything, and i like to go tanning. im not like thoughs jersey shore d bags and i dont dress like them. but every time i meet a new girl she assumes im a player and a tool..which if shed get to know me shed realize im not,what can i do about this?