I believe people tend to dump their mates based upon( their comfort level).
Getting dumped is an ego crusher to the nth degree.
Regardless of the method used the end results are the same. (The relationship is over)
It’s a waste of time and energy for anyone to get hung up on “how” .
Whether someone is let go from a job or relationship they have no say in how it is done.
Having said that one of more fashionable ways people are ending relationships is called “the fade-away”.
Without any warning they just “vanish”. (They stop calling and won’t respond to the contact efforts made by the person they were involved with.)
Recently I wrote a hub on this subject.