aloof

detached distant haughty indifferent standoffish unresponsive unsympathetic

above apart casual chilly cold cold fish cool forbidding hard-boiled hard-hearted incurious laid back lone wolf loner offish on ice putting on airs reserved secluded solitary stuck up supercilious thick-skinned unapproachable unconcerned unfriendly uninterested unsociable uppity withdrawn

compassionate friendly interested kind sympathetic warm

concerned sociable