<human>: Can you provide a brief rundown of the text in within 3 sentences?

I am currently a 20 year old single college student that has not been in a relationship since high school. It's not that people have not asked me out during college but I find that for me it's all about the chase - I would fall head over heels for someone and we would talk, flirt, go out whatever but whenever I find the guy starting to like me back or asking me out, I find a million reasons to say no, or my interest in them would immediately wane and I would not like them anymore. I worried that this mentality would cause me to be single forever. Does anyone have anyone advice on this matter?
<bot>: Once a guy I like is starting to become interested in me, I am no longer interested in them...will I be single forever?