Are there people out there who are just not ment to be loved?

ok,so.all my live, ive tried but really tried to find love,but no one has ever seen me in a way other that a friend they can trust,and thats fine,but,why cant i ever find love,am always there for my friends,i always lend a helping hand to people in need and everyone around me always seems to find love but,not me,sometimes i think im just ment to walk alone tru life