Well maybe its the way you come across, there is nothing more unattractive than neediness. It drives me mad, and this can come across as jealously, over enthusiasm, well in loads of ways actually. You just have to have the confidence in yourself so that being single isnt such a daunting idea. Ive been single for 2 years and I love it, if youve always been in relationships I can see how it may be scary but maybe you need some time on your own to get used to being with you again.
Hope that drivel helped xx