There can be unconditional love.
when two people know that they like each other, but are not sure if they really want to be together, they give it a shot through live in relationship to find out is this what they want?
there can be a situation where u love someone but there are certain conditions which can come in the way, ex- distance. you know you want each other, love each other, but due to circumstances and distance cannot be together( its easy to say fly to him/her- but is not practical everytime). In this case it can be an open relationship- unconditional love, no commitments.now this is just my point of view, others might think differently.
But to enlighten u i got a simple solution - turn on the lights in ur room