a and b want to associate, a want to associate with c, c don't want to associate with b, b doesn't care as long as he can associate with a, as per the grandpare

a and b want to associate, a want to associate with c, c don't want to associate with b, b doesn't care as long as he can associate with a, as per the grandparent comment statement, given that neither a, b and c did anything reprehensible yet. everyone is free to act, but still a problem presents itself. what's the more just option for person a according to ethics and morals? that's the core of the conundrum, the right to associate and disassociate impacts other people freedoms, as such is the nature of interpersonal relations; of course individual have their individual freedom, but should A act on C prejudice, or in other word should C demand limits on A freedom (i.e. cancel culture) mind you, the issue is about C own personal perceived feeling of unsafeness, not on B having done anything against C.