Anyone ever been here?

So me and my long term boyfriend have always been able to go through tough times and come outta it. We both have really come down to trying everything to stop us from fighting. We have tried to move on and just can’t. I sit here and think wow. We are two people who do love each other even through the bad times. We always fight for each other. The last couple months have really been bad... and we both maturely decided we want to make a list each on what we need from each other to change and be happy. My question is to not hear that we need to fully leave each other as that’s something we will figure out later this week with the list an no contact.. i need to know if any of you ladies have been in my position? Did it work? Two people who are serious about change can and will. But I wanna hear your stories on having enough of a certain issue that’s hurting the other.? Not to leave him!