Has anyone been too scared to break their girlfriend's heart? For example you both live together but your heart is not in it but she loves you dearly and deeply. So you have decided to pack your bags and leave without telling her?
Another " strange " thread but confession time, yep I did it, left the country for a while, and it is an awful thing to do, if for no other reason than the stress caused not coming home and no explanation, it was all explained to me by her, when she found me about 6 weeks later.
Just divorced, still young and immature, living in Essex, working in Central London, it was a relationship of convenience for me, she had a flat in London, when she started wedding chat, well, just got out of that and coming to terms with being a weekend dad, I had it on my toes.
Learned since you can have break ups and remain friends if you are honest and talk about it. So no, it is not recommended, at least mobiles might take the stress out of thinking you have a missing person, but still, as many have said, a shitty thing to do.