Men who think you ‘don’t know till you try’

Why? Why are they like this? A man comes up to me, asks where I’m going and I say to meet my girlfriend (a lie but it normally gives men the message) he acts surprised, but still asks if he can take me out for a drink, I say no I am a lesbian, he says “ah well you never know, it’s one of those things you know” and I say no I do not like men at all and I walk away. I can’t even get on a bus in peace, why? Why do they think they can ‘change’ us. He wasn’t even an nice looking man either, like if RiffRaff discovered box dye and faux fur.