<human>: Give me the gist of the text in a nutshell

A recurring pattern with my love life is that I  usually get cold feet when someone I know expresses interest in dating me. When this happens, it is usually a friend, someone I might have fancied but not completely sure I feel the same way about. I feel like I don't want to mess around, lead them on and hurt them (this has happened before). On the other hand when I like someone, I fall head over heels to the point of being close to obsessed; again it is usually for a friend. I find it difficult to tell them how I feel, because I am afraid this might ruin the friendship (I've lost one friend like this too). So basically I never end up in relationships apart from maybe occasional one-night stands with strangers I meet in a bar. What do I do?
<bot>: The people I am interested in aren't interested in me. The people who show interest in me I'm not always into. Usually these  two happen at the same time.