Very outgoing but avoid intimate, honest, close relationships (especially with girls) so i don't get embarrassed/hurt. avoidant personality disorder?

Maybe: I'm not sure if labeling it is necessary because either way you probably need some counseling to help you overcome the things you're describing.

Avoid closeness: You sound like you have some insecurity problems in dealing with people and close relationships. You need to talk with a counselor to feel better about yourself.

Avoidant Personality: Pervasive pattern of social inhibition, feelings of inadequacy, extreme sensitivity to negative evaluation, & avoidance of social interactions. They are very sensitive to criticism/rejection, are shy, have low self-esteem, very self conscious, & can become depressed & anxious.