I just saw a video posted on Facebook titled "Strangers, again". The whole video is sort of true in a way. For me, stage 3 is the best part of a relationship. And yeah, when things go wrong, what happens in the video is a generally what will happen in a failing relationship. It's kind of sad, though, that quite a lot of relationships do end that way - being strangers, again. But if that happens, you just gotta move on with life. It's difficult but in the long run, it will be worth it. There's no point looking back and regretting what is already in the past. Who knows? You just might meet someone just as special, if not more than that, in the future and your stage 4 will be a whole lot different.

p.s I'm still waiting for the right person to even initiate stage 1. And that's always the hardest part.