M
I'm not a guy, but I have done the disappearing act myself...( I know, but I am a nice person, honest)
It's just things aren't working out, so you leave. Why don't you give a warning? Because they want let you say,"oh, sorry things aren't working out for me, we should find other people." They'd call you names and make you feel terrible and you end up staying not to hurt them(this is for me any way). So disappearing is the easiest because you can leave. And both of you can find better people instead of trying to make something work that isn't. Sometimes it can just be because things are boring though.
All in all, it's all about finding the right person. Not attempting to make the wrong person right
It's just things aren't working out, so you leave. Why don't you give a warning? Because they want let you say,"oh, sorry things aren't working out for me, we should find other people." They'd call you names and make you feel terrible and you end up staying not to hurt them(this is for me any way). So disappearing is the easiest because you can leave. And both of you can find better people instead of trying to make something work that isn't. Sometimes it can just be because things are boring though.
All in all, it's all about finding the right person. Not attempting to make the wrong person right