Basically, he is my friends ex-boyfriend’s best friend and I like him. we met like a week ago and we started talking but nothing special. we did know each other’s existence before, but it wasn’t like we were really really talking. He’s being pretty kind and pretty good to me but I don’t know what to do. I feel like I shouldn’t do this because my friends ex boyfriend likes me. It’s not that I care a lot about his feelings but I don’t want him to be hurt because he was hurt before by my best friend. But I don’t know how to break it down to him and tell him “I don’t like you”. Also, the ex-boyfriend is more obvious about his feelings(that he likes me) while my crush is doing small things but nothing that could be taken seriously as a sign that he likes me. What should I do?