What is my problem? 21yr old lad needs help

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So im 21, i have a property in bulgaria, i have a good personality, a nice car, a steady well paid job with great prospects, good mates, and wouldnt say im a stunner but im not an ugly guy, all in all a great catch. so why cant i seem to get myself a girlfriend? any girl that gets close i seem to push away, am i looking for perfection, or scared of commitment??