Yes, always. I remember when I was 15 or 16 that I met one guy that was on my class. We were good friend, talked everyday, and I was super nice to him (as well as I was super nice to everyone). I knew in some way that he would develop romantic feelings for me, but the situation keep going... One day he told me to go somewhere to talk we both alone (we were at highschool) and I was like oh no, no, no, fuck, fuck, fuck, he's going to ask me out, I don't want to hurt him, how the hell am I going to tell him that I don't like him back? Well, after rejecting him he started dating my squish:"D
Now I am scared to be too much nice to people because I don't want them to think I am flirting or something.