I know 2 vanisher (my xh and his bf) His bf has been a vanisher since late 2009 and mine since 2014. Bf and his OW moved in together new year 2015-16 when OW husband "finally" died (had been in hospice since 2009. Her 24 yo daughter moved in with them this new year. They are not married yet. My xh going on 3rd year with OW#2 (could be #8, who knows?) still not married but who knows she might trick him into this? Or he has started to walk up from Zombie land and never marry her
About vanisher vs clinger vs boomerangs……my view is; I think the more shame they feel over what they have done, the more vanishing behavior they show. I'm just thinking about when I have done something "not so good/nice" I tend to not want to see that person, cause that will bring out my shame more. Maybe there is a correlation also between high replay vs higher/deeper things they are ashamed of (more stuff then "just" one OW I mean?
Hugs