Yoko Kamio ended up saying something completely different with Love through a prism
The title of this show can be starkly misleading in my opinion. Love through a prism showed among the best depictions of loss and grieving, surrounding Kit and his parents, it was subtle, but his paintings about his mom in the dining area and in the hall way, the dress, and the lily flowers, him just standing there staring into the void, feeling things. It was all too real sitting there on a chair while his deceased dad lay on a bed of lilies.
The anime showed among the best depictions of growth, with Lily and Catherine's relationship developing, Kit's transformation, and Peter's life. Ironically the least character development was in Lily herself, but that's debatable.
Im trying to say that the love being referred to was knowing yourself, and even being faced by circumstances that force you to abandon what you love, your life posseses more value when you engage with it. For this show it was their art that led them to eachother, the potential romance was just a byproduct. Even in the last episode, they confessed through describing how life's experiences are without eachother. They were most pleasant with the one's who loved doing what the other loved.