In the instance of "Grass Is Always Greener" Syndrome, your ex is likely to have met someone fresh before your split, which may have precipitated the breakup. Also, your ex-girlfriend is in her early twenties and wants to keep her options open in order to discover what is available to her. She might be tempted by someone who appears more successful or richer than you.
The fact that your ex is meeting other people doesn't mean that you are any less attractive or desirable than she is. In fact, it's just the opposite: You're more attractive because he's looking elsewhere. The more people your ex meets, the more opportunities there are for him to find "grass is actually greener" situations.
The main thing is that you need to accept that your ex has moved on with her life and stopped caring about you. Even though you both decided to end things, she still feels guilty about this and feels like she should stay with you. This is not possible so don't try and force her to stay if she doesn't want to.
If you really feel like you've reached an ending then focus on moving on with your life. Do something new with your time and stop dwelling on past relationships. If you do this then you'll see that "grass is always greener" syndrome isn't as big of a deal as it first seems.
Do ex-lovers return once the Grass is Greener? It's absolutely a possibility. In fact, I frequently hear tales about an ex recognizing the pattern of being dissatisfied with a good relationship with a decent person. This is especially true if their new relationship or new companion is a disaster. Then, too, if one of them has a new interest who brings out the best in him or her (such as a young lover does for a young couple) then that person could possibly return the favor someday.
However, unless there are deep-seated issues involved, I would expect this to be a rare occurrence. Most often, people move on because they want to find someone who makes them happy and only stay with one partner for the long run.
That said, it's important to remember that relationships are hard work. You need to give yourself time to grow together and look beyond your initial feelings. If you do decide to get back together then make sure it's for the right reasons.
Also, don't expect your ex to instantly recognize how great you were as a partner. They're going to take their time getting back to you and when they do, be patient. The last thing you want is for them to jump into another relationship without giving them time to miss you.
Finally, take care of yourself. Recovery from a breakup can be difficult and can lead to depression.
Most of the time, there are no visible warning indicators that indicate an imminent "Grass Is Always Greener" syndrome split. The dumpee is probably still under the notion that everything is well with the relationship. The reason for this is that their relationship had no serious issues.
It is the sense that an other decision may be better, whether it be a relationship, a job, or a buy. Having said that, it's natural that the "grass is greener mentality" is quite widespread in dating, relationships, and marriages.
Overcoming "The Grass Is Always Greener Syndrome"
The phrase "the grass is always greener on the other side of the fence" is well-known, yet it is rarely used literally. They become used to their side of the barrier. The opposite side of the fence depicts an unexplored world brimming with potential. It's a metaphor for what's out of reach for mankind.
Do ex-lovers return when the grass is greener? It's absolutely a possibility. In fact, I frequently hear tales about an ex recognizing the pattern of being dissatisfied with a good relationship with a decent person. This is especially true if their new relationship or new companion is a disaster.
It is the sense that an other decision may be better, whether it be a relationship, a job, or a buy. Having said that, it's natural that the "grass is greener mentality" is quite widespread in dating, relationships, and marriages. It's human to want what others have and think that our own situation would be better if only some things were different.
Of course, the reality is that no one can make you feel good about yourself or your life. If something is missing in your relationship, it's not because there is something wrong with you, but because there is something wrong with him or her. Only you can decide how you feel about yourself and your life. No one else can do this for you.
The important thing is that you feel comfortable with yourself and your life. If you are unhappy with something, work on it until you are satisfied. Don't expect someone else to make you feel good about yourself if you aren't feeling confident in yourself already.
In conclusion, yes, the grass is always greener in relationships. But that doesn't mean that you should compare your partner to everyone else. Instead, focus on yourself and your needs. Then go out and find someone who will make you feel good about yourself.