I had a long phone conversation with Son2 a few days ago, and he said that he and K were working through some things. They sat down and each made a list of what they want, and came to find out that they had so much more in common on their lists than not. They still love each other, and still want to maintain the relationship. So, what is the problem then? Well... it sounds like they are realizing that they jumped into things a bit too quickly a couple years back, and missed that normal relationship building, dating, etc. Uhhhh... when I told my husband, he actually burst out laughing. This would be in the "I tried to tell you" category. We certainly felt that at the time. When they first got together, I felt so uneasy about it. It was a terrible time in his life, confessing his addiction to us, and then starting a relationship with someone at the same time?
So, they are trying to back up, not an easy thing to do, and it will take a lot of work and commitment from both of them. She is going to move out for a month, they will "date", they will keep the apartment, the third roommate will move out for good, and K will move back in after a month. At that time, they plan to each have their own "space" in the apartment. They will each have the opportunity to have their own room, so that is probably a good thing.
They seem to think it is worth all of this, and I have to give them credit for trying. I suggested counseling, and Son2 liked the idea. He is a little skeptical about how things will be when she comes back, but I told him there are never any guarantees, and to take it as it comes.
So... K is NOT out of the picture. Personally, I am glad. I hope things work out.