Unconditional love ist is great. We are here to get to know it or experience it.
However, unconditional love is not at all a blueprint for relationships. Actually, it does not have much to do with relationships, because good relationships function on GOOD CONDITIONS. Conditions like MUTUAL reliability, support, friendliness, and so on.
Nobody tells us that unconditional love is a transcendent experience and not a way of relating, so everybody is irritated...