He started as a clinger, vanished 2012 once he filed for the d. After having had to make contact with him last fall, and with the interactions we've had since, I realize he would have continued to cling, so long as I pursued. It would have been Monster, but still there. He filed as an aggressive response to me presenting him with his total share of our joint debt (plus OW pressure), and I think wanted me to respond with a fight. I didn't, to the point of letting his mail pile up for months and eventually just delivering it through my attorney. I think my silence laid a big layer of shame and guilt on him that made him too weak to reach out to me first. For me though, that was the right thing to do for my healing.
Now, he mirrors whatever I do, but it's usually within a matter of minutes (or seconds, LOL) with electronic contact. I never reach out unless I have to (property matters), and I don't respond unless there's a reason (I leave the conversation first). I deal with him like he's not my favorite client. LOL Cordial, but terse.
For me, the pros of dealing with a clinger were that it kept me in the moment - I dealt with only the "current" him, without space for my imagination to remember who he was. Most of the time that was really frustrating, but it reminded me why it was good he was out of the house! The con of course was the same thing. It's hurtful that he changed.
The pros of a vanisher were that I had space to heal, and I got to really start living my own life. MLC is in my life if I pay attention to it (which I still do, probably too much). The cons are that I miss him (the old him). I cycle more because my imagination puts clues together to guess where he's "at" in the tunnel, and that can be disappointing in a lot of ways. It was initially lonely because at least what I knew, with Monster, was predictable contact with the person I loved most.