There are not 2 people that touches us the same. There are people that we came across that touches us differently, on a Soul level. There's a reconnection, a vibration, a feeling of safeteness that is undeniable. A peace in their presence, a familiarity, a comfortable state, that we can just "be", in all our human form. There is no "fear" of doing it wrong, there is no fear of loosing, there is no fear of not having, because there is an inner knowing, that something powerful, unshakable and unbreakable just "is", and exists, beyond our human experience.
This is the only way I can put it in words.
True love can never be diminished it's ever expanding. Our souls are capable of loving many, but I don't think we love everyone the same way. There's an energetic signature that pulls us towards some people and have the opposite effect with others. In the presence of true love we protect the other as oneself.