unconditional love doesn't make a condition of other vs self. Unity isn't unity; when anyone is excluded it isn't unified and it isn't unconditional. so if two people are drowning and neither knows how to swim, let alone how to save another, the self can't help another.Is there harm toward my being by dedicating my life to serve others? No
so then, self can't be excluded in unconditional; otherwise you created a condition for self and another for other as self.
so then if self has a need, it's need must be covered first. if the other as self has a need, and self has all it's needs covered, by all means.
but if other as self has a want, not a need, they have enough time to knock themselves out; unless self wants to help.
it's basically the law of reciprocity, or golden, rule. do unto others as you would have done unto you. do no harm.
abuse of anyone, including self by self or other as self, is not unconditional love