You still think this is about you and your brother? You expect the world to wait so he can sort out his feelings? Do you know the damage that can be done while we wait for him to indulge himself?
I do not care what feelings he may have for this demon. I do not work to your schedule. We have two choices, we keep Lilith alive indefinitely which is impossible or we kill her before she can break 65 seals which is insanely difficult but just maybe possible.
It is difficult to confirm what Ruby tells us. I cannot hear the demon's talk. She can tell us they are say anything and we have no way of confirming it. This is too important. She has already admitted to lying to Sam, to using him for her ends. I cannot believe he would give her the chance to do it again. We cannot afford to take that risk.
We are talking about the future of Heaven and Earth. It cannot be gambled on a demon's loyalty and your brothers' sentiment. We are going to stop Lilith without the assistance of her fellow demons. Without your brother if necessary. Without you if that is what you choose.