My guess: 1. Maturity level of the participants 2. Getting into it just for fun. So when the fun is over, the relationship will too. 3. When our expectations reach the sky but whwn reality hits we can't take it. 4. Always thinking that we could do better. This shit will never let us stay and appreciate what we have. Becha bezu bezu new. But still survive argew miwetu alu so don't lose hope. Hope this helped ✌️