So here is the thing, I'm watching this Japanese dorama (tv-show) where the story revolves around two characters, a guy that never has experienced love after losing faith in it when his mother left him at a young age, and a woman that has been waiting for her boyfriend in two years without hearing anything from him. They both decide to have a "game relationship", which says that they will be together as a couple until the other guy returns and that they will end it there. I think most people know that these game relationship don't usually end well, it's difficult to avoid someone getting hurt, just as it often is when you have a friends with benefit relationship (nothing saying that it doesn't work, but that there always is a possibility that one of them will get feelings that later will get them hurt). This guy of course returns, and when she asks him why he didn't contact her he responds that he didn't have the time for it, which for me clearly is another way of saying that he didn't love her enough to take the time to contact her. This got me all thinking about how would it be acceptable and if so for how long time would you wait for someone you truly loved? The guy in the story I was watching was in America becoming famous of something, but if he/she for instance had been in war for 2 years or in prison (let's say for a crime he/she didn't commit), would you wait for that person? Is it worth waiting a long time for someone that you might or might not spend the rest of your life with?
Well I guess if you knew they were alive you could spend time on it. But I wouldn't be doing anything crazy like Penelope/Odysseus. But I'd have to have at least some sort of communication, not just a tap on the door a few years later and expect things to be the same.
if they were off in another country being a celebrity and not bothering to pick up a phone or make a quick email, a hell of a lot less than 2 years.
Depends on the circumstances of the situation. In some cases, I'd wait a decent amount of time, 10-12 years.
^ op is talking about no contact at all. Not waiting for sex, but waiting not knowing what the person is doing where they are or even if the are alive.