Because I really think it takes them THAT LONG to really realize what they had. When men break up, I don't think they really think about teh consequences and look at the future that well. Men live in the moment. But at some point down the road, they stop and say Hey, I miss that girl I broke up with 5 years ago! Same goes with men that go out with a girl then don't call them for months on end. I
Dont think all ex boyfriends come back,the first two of mine came back one month after but that was because I dumped them,but currently I was dumped,and he said he would never come back.