There’s in an interesting passage in SN 46.54 where the Buddha talks about how to transform loving-kindness into its maximally liberating form, where he describes the practitioner like this:
“If they wish: ‘May I meditate perceiving the repulsive in the unrepulsive,’ that’s what they do. If they wish: ‘May I meditate perceiving the unrepulsive in the repulsive,’ that’s what they do. If they wish: ‘May I meditate perceiving the repulsive in the unrepulsive and the repulsive,’ that’s what they do. If they wish: ‘May I meditate perceiving the unrepulsive in the repulsive and the unrepulsive,’ that’s what they do. If they wish: ‘May I meditate staying equanimous, mindful and aware, shunning both the repulsive and the unrepulsive,’”
I always find this sutta to be a nice precursor to more Mahayana style emptiness teachings, where the endpoint is total freedom from perceiving either repulsiveness or unrepulsiveness as *inherent* to the object (I do think Theravada teachings lead there too but it’s just a bit more explicitly in Mahayana more often; sometimes Theravada can give the impression that seeing phenomena as having an inherently repulsive aspect is an endpoint).
It’s interesting to me that this formulation is laid out specifically with reference to how “the heart’s release by love” is developed. I do think unconditional love (when combined with the awakening factors) is the closest relative analogue to the ultimate viewpoint of nibbana in that when one loves something / someone unconditionally one can perceive all its / their relative good and bad, whilst maintaining a heart of goodwill and openness towards it / them.
Moving away from suttas / sutras to my own personal experience, I can say that when I touch the moments of deepest release, although the push/pull dynamics of grasping/resistance subside, the beauty, purity, bliss and love remains but is so omnipresent that there is no impulse to try to chase, contain or possess it (and there is nobody left to grasp or resist it in any case). In the deepest release, there is nothing repulsive (or magnetic) at all about phenomena; it is all just empty, loving, blissful awareness.