IMO, if a couple is to the point that they are able to agree to this, one week is not long enough. I would think one month would be better. I think the purpose of such a trial separation would be so that each can have opportunity to reflect on what the other brings to the relationship. By the end of the trial period, it should be clearer as to whether or not the little aggravations in the relationship are worth the companionship. What is more important… that you get to sleep thru the night without listening to him/her snoring or that you can rollover in the night and throw your arm across a warm body? What is more important… that there is less laundry and dishes to clean up after or that there is someone that acknowledges you when you come home each evening? The little stuff like that becomes obvious during a trial separation. The other thing that could come about from this is the fact that the couple could start “dating” and “wooing” each other again. The reattachment after a trial separation could actually rekindle the relationship and make it as strong and romantic as it was in the beginning. Of course, another option would be for them to agree the relationship is dead, but if they are in agreement, it’s not a bad thing. The down side would be for one of them to realize the relationship really is dead and the other to realize he/she wants it to rekindle…