Secondly--- keep worrying about Kissak, and not what your mixed-up man is up to. Yes, it hurts....I know this from experience. But, I also know that when I go on with my life and stop worrying about what my Xh is up to I am much better off.
You have to stay in the frame of mind of "He is crazy to leave this behind" as opposed to "How could he leave me behind???"
I am sure you already know that asking if another woman is a "threat" is a no-no. Yes, I understand that you want to know what is going on. However, you do not seem ready to be done with this relationship, so details will just hurt you at this point.
Honestly, I went thru something very similar not too long ago. I was destroyed. Then I thought about all the times XH has come to me for this or that, or some of the things he has said to me. I don't believe he has lied about those things...and I don't consider anyone else a "threat." I am the threat. My XH isn't done with me- your H isn't done with you. So, let's continue to fill our time with productive things---which don't include worrying about what silly MLC nonsense they are up to now.
I hope I do not seem to be making light of your sitch. I know your pain. I also know that I hate myself when I waste time reacting like you are right now.
Leave him be. This changes nothing... as long as you don't want it to. It is very possible that he is still very confused..and acting in a very immature and irresponsible way instead of dealing with it.